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*_IBM...
*ACC Micro...
*ALD...
*ALi...
**M1439/31/45 486 VLB/PCI/ISA [no datasheet, some info] <May95
***Notes:...
***Configurations:...
**M1489/87 FinALi-486 PCI Chipset <Feb95...
**M???? Genie, Quad Pentium [no datasheet, some info] c95...
**M1451/49 Aladdin (Pentium) [no datasheet] ?...
**M1511/12/13 Aladdin II (Pentium) [no datasheet, some info] >Apr95...
**M1521/23 Aladdin III 50-66MHz <Nov96...
**M1531/33/43 Aladdin IV & IV+ 50-83.3MHz <05/28/97...
**M1541/42/33/43 Aladdin V & V+ 50-100MHz ?
***Info:...
***Configurations:
M1541/M1542 System Controller
M1533/M1543 PCI-to-ISA Bus Bridge
M1541 + M1533
M1541 + M1543
M1542 + M1533
M1542 + M1543
See the M1531 section for details on the M1533.
The datasheet is very confusing as it does not state how the terms
M1531, M1532, Aladdin V and Aladdin V+ relate to each other. According
to:
http://pclinks.xtreemhost.com/chipsets_pentium.htm
The Aladdin V and Aladdin V+ names are both associated with the M1541.
The M1541 has 5 revisions, A thru E. The M1542 part number is assoc-
iated with revision F onwards. The main difference with the M1542 is
that it now can cache 512MB of RAM, instead of only 128MB. The diff-
erence between the Aladdin V and Aladdin V+ is that the V+ officially
supports a 100 MHz bus, the V only 83.3 MHz.
However, none of this information can be derived from the datasheets
used to write the info and features section.
***Features:...
**M1561/43/35D Aladdin 7 ArtX [no datasheet, some info] 11/08/99
***Notes:...
***Info & Features:...
***Configurations:...
**M6117 386SX Single Chip PC <97...
**
**Support Chips:
**M1535/D South Bridge ?...
**
**May not exist:...
**Later Chipsets:...
***PII
None of this information has been checked against actual datasheets.
North/South Name: CPU FSB AGP RAM
M1621/M1533 Aladdin Pro PII 66/100 2x 2GB EDO SDRAM
M1621/M1543/C Aladdin Pro II PII Dual 66/100 2x 2GB EDO SDRAM
M1631/M1535D Aladdin TNT2 (UMA) PIII/Cel 66/100 2x 1.5GB EDO SDRAM
M1632 Aladdin Cyber Blade 2 PIII 100 2x 1.5GB EDO SDRAM
M1641B/M1535D Aladdin Pro 4 PIII/Cel 66/100 4x 1.5GB EDO SDRAM
M1644/M1535D+ Aladdin Cyberblade XT PIII/Cel 100/133 4x 3GB SDRAM DDD
M1644M/M1535D+ Aladdin-T Cyberblade [same as 1644/M1535D+ but supports Tualatin]
M1651/M1535D+ Aladdin Pro 5 PIII/Cel 100/133 4x 3GB SDRAM DDR
M1651T/M1535D+ Aladdin Pro 5T [same as M1651/M1535D+ but supports Tualatin]
"Aladdin Cyberblade" above is short for "CyberAladdin Cyberblade". All
Cyberblade chips have integrated video, as does the Aladdin TNT2.
***Athlon...
**Other:...
*AMD . . . . . . . [no datasheets, some info]...
*Chips & Technologies...
**CS8231 TURBO CACHE-BASED 386/AT (82C301/307/303/304/305/306) c86
***Info:
The CS8231 TURBO CACHE BASED 386/AT CHIPSet is a seven chip VLSI
implementation of most of the system logic to implement a CACHE BASED
iAPX 386 based system. The CHIPSet is designed to offer a 100% PC AT
compatible integrated solution. The flexible architecture of the
CHIPSet allows it to be used in any iAPX386 based system design, such
as CAD/CAE workstations, office systems, industrial and financial
transaction systems.
The CS8231 CHIPSet combined with CHIP's 82C206, Integrated Peripherals
Controller, provides a complete PC AT compatible system using only 40
components plus memory devices.
The CS8231 CHIPSet consists of one 82C301 Bus Controller, one 82C307
Integrated CACHE/DRAM controller, one each of 82A303 and 82A304
Address Bus Interfaces, two 82B305 Data Bus Interfaces, and a 82A306
Control Signal Buffer.
The CHIPSet supports a local CPU bus, a 32-bit system memory bus, and
AT buses as shown in the system diagram below. The 82C301 and 82A306
provide the generation and synchronization of control signals for all
buses. The 82C301 also supports an independent AT bus clock, and
allows for dynamic selection of the processor clock between the 16M
Hz, 20MHz, or 25MHz clocks and the AT bus clock. The 82A306 provides
buffers for bus control signals in addition to other miscellaneous
logic functions.
The 82C307 is a high performance and high integration CACHE/DRAM
controller designed to interface directly to the 80386 micro-
processor. It maintains frequently accessed code and data in high
speed memory, allowing the 80386 to operate at its maximum rated freq-
uency with near zero waitstates. By integrating DRAM control func-
tions on-chip, it supports simultaneous activation of cache and DRAM
access, thereby minimizing the cache miss cycle penalty. It has
hardware support to allow the user to designate up to four blocks (of
variable size from 2KB to 128KB) of main memory as non-cacheable
address space. This feature is important for compatibility issues
when operating in a multiprocessing or LAN environment, or where dual-
port memory is used, and to designate certain regions of video RAM as
non-cacheable. This feature eliminates the need to use very fast PALs
externally to decode non-cacheable regions and gives the user much
more flexibility. Optional EDC support logic is integrated on to the
82C307 which allows it to interface to any of the generically
available 32-bit Error Detection and Correction Circuits to realize a
highly reliable memory subsystem.
Cache coherency is maintained during DMA cycles by channeling all acc-
esses through the cache controller logic. During DMA read operations,
the cache RAM is not accessed and data is retrieved from the main
memory. During DMA write operations, if a cache hit is detected, the
cache RAM is updated and the corresponding tag validated. Cache
coherency is maintained at all times, with no performance penalty.
The 82C307 is available in a 100 pin PFP package.
The 82A303 and 32A304 interface between all address buses, and the
addresses needed for proper data path conversion. Two 828305 are used
to interface between the local, system memory, and at data buses. In
addition to having high current drive, they also perform the
conversion necessary between the different sized data paths.
***Configurations:...
***Features:...
**CS8232 CMOS 386/AT (82C301/302/303/304/305/306) c86...
**CS8233 PEAK/386 AT (Cached) (82C311/82C315/82C316) c:Dec90...
**CS8236 386/AT (82C301/2/3/4/5/6/206) c86...
**CS8237 TURBO CACHE-BASED 386/AT (82C301/7/3/4/5/6/206) c86...
**CS8238 CHIPS/280 & 281 (386 MCA)(82C321/322/325/223/226) c:Aug89...
**CS82310 PEAK/DM 386 AT (82C351/82C355/82C356) c91...
**CS8281 NEATsx (386SX) (82C811/812/215/206) c:Dec89...
**CS8283 LeAPset-sx (82C841/82C242/82C636) c:Mar90...
**CS8285 PEAKsx (82C836/82C835) c91...
**CS8288 CHIPSlite-sx (82C836/82C641/82C835) c?...
**CS4000 WinCHIPS (64200/84021/84025) c92...
**CS4021 ISA/486 (84021/84025) c92...
**CS4031 CHIPSet (84031/84035) 5/10/93...
**CS4041/5 CHIPSet (84041/84045) 2/10/95...
**CB8291 ELEAT [no datasheet] c90...
**CB8295 ELEATsx [no datasheet] c90
assumed to be sx variant of of ELEAT
**82C100 IBM PS/2 Model 30/Super XT ?...
**82C110 IBM PS/2 Model 30/Super XT ?...
**82C235 Single Chip AT (SCAT) c89...
**82C836 Single Chip 386sx (SCATsx) <91...
**F8680/A PC/CHIP Single-Chip PC c93...
**
**Support Chips:
**64200 (Wingine) High Performance 'Windows Engine' c:Oct91...
**82C206 Integrated Peripheral Controller c86...
**82C601/A Single Chip Peripheral Controller <08/30/90...
**82C607 Multifunction Controller <Jun88
***Info:...
***Versions:...
***Features:
o Single Chip UART and Analog Data Separator
o 100% functionally compatible to the IBM PS/2 model 50, 60, and 80
o Fully compatible NSl6550 Asynchronous Communications Element
o 16 bytes FIFO for transmitter and receiver buffers
o Easy interface to the Industry standard floppy disk controllers
(765A/765B/8272A)
o Supports multiple data rates (250K, 300K, and 500Kbps)
o High drive, 48 mA output buffer
o Schmitt trigger inputs
o Low power advanced CMOS technology
o 68 pin PLCC or 80 pin Flat Pack
**82C710 Universal Peripheral Controller c:Aug90
***Info:...
***Versions:
82C710
***Features:...
**82C711 Universal Peripheral Controller II c:Jan91...
**82C712 Universal Peripheral Controller II c:Jan91...
**82C721 Universal Peripheral Controller III c:May93
***Info:...
***Versions:...
***Features:...
**82C735 I/O Peripheral Controller With Printgine c:Jul93...
**82C835 Single CHIP 386sx AT Cache Controller c:Apr91...
**F87000 Multi-Mode Peripheral Chip 11/23/93...
**Other:...
**Disk:...
**Video:...
*Contaq . . . . . [no datasheets, some info]...
*Efar Microsystems [no datasheets, some info]...
*ETEQ...
**66x8 VIA clones [no datasheet] ?
***Notes:...
*Faraday...
*Forex . . . . . . [List only, no datasheets found]...
*Intel
**IBM PC/XT/AT Chip Sets...
**82230/82231 High Integration AT-Compatible Chip Set(ZyMOS) c:Aug88...
**82310 Micro Channel Compatible Peripheral Chip Set 04/21/88...
**82311 High Integration MCA Compatible Perip. Chip Set 11/14/88...
**82320 MCA compatible Chipset [no datasheet] 04/10/89...
**82340DX Chip Set (VLSI) (82346/82345/82355) 01/08/90...
**82340SX Chip Set (VLSI) (82343/82344) 01/25/89...
**82350 EISA Chip Set 07/10/89...
**82350DT EISA Chip Set 04/22/91
***Notes:...
***Info:...
***Configurations:...
***Features:...
**82420TX/ZX PCIset (for 486) TX (Saturn), ZX (Saturn II) c:Nov92...
**82420EX PCIset (for 486) EX (Aries) (82425EX/82426EX) <Dec94...
**82430LX PCIset (Pentium) LX (Mercury) (82433LX/82434LX) 03/22/93...
***Configurations:
Parts:
Intel 82434LX (PCMC) PCI/CACHE/MEMORY CONTROLLER
Intel 82433LX (LBX) LOCAL BUS ACCELERATOR
ISA:
82434LX + 2x 82433LX + 82378IB
82434LX + 2x 82433LX + 82378ZB
The main difference between the 82378IB and 82378ZB is the number of
PCI masters supported. See the 82378 section for details.
EISA:
Intel 82434LX + 2x 82433LX + 82374EB + 82375EB
Intel 82434LX + 2x 82433LX + 82374SB + 82375SB
The main difference between the EB and SB variants is that the SB
includes power management options. It was released later when
various enhancements had been made to the EB variant. See the
82374/82375 section for details. It is unlikely the SB variant is
paired with this chipset as it was released when the 430LX was being
replaced with the 430NX.
These chipsets are often paired with the SMC 665 for I/O support or
the NCR 810 for SCSI.
Why this section is so detailed:
Any chips manufactured before Jan 94 have serious problems with the
PCI/EISA bridge's throughput. The problem affects the ISA version too,
but is less pronounced.
Two references from November'93 give some inportant detail that seems
to be missed in the datasheets. It would appear there is an update to
the 82374/82375EB EISA components in late '93, that has some
significant changes. these are not reflected in the datasheets
referenced.
It would appear the mentioned redesign, maps well to the update of
82378 ISA component from the 82378IB to the 82378ZB. Though no
information specifically stating this has been found. It is only that
these are in the same time period.
****References:...
***Features:...
**82430NX PCIset (Pentium) NX (Neptune) (82433NX/82434NX) Mar94...
**82430FX PCIset (Pentium) FX (Triton I) (82437FX/82438FX)01/31/95
***Notes:...
***Info:...
***Configurations:...
***Features:...
**82430MX PCIset (Pentium) MX (Mobile Triton)(82437/438MX)11/01/95...
**82430HX PCIset (Pentium) HX (Triton II) (82439HX) 02/12/96...
**82430VX PCIset (Pentium) VX (Triton II) (82437VX/82438) 02/12/96...
**82430TX PCIset (Pentium) TX (Triton II) (82439TX) 02/17/97...
**82450KX/GX PCIset (Pentium Pro) KX/GX (Mars/Orion) 11/01/95
***Notes:...
***Info:
****General:...
****82454KX/GX PCI Bridge (PB):...
****Memory Controller (MC) 82453KX/GX (DC), 82452KX/GX (DP), 82451KX/GX (MIC)
The MC consists of the 82453KX/GX DRAM Controller (DC), the 82452KX/GX
Data Path (DP), and four 82451KX/GX Memory Interface Components
(MIC). The combined MC uses one physical load on the Pentium Pro
processor bus. The memory configuration can be either non-interleaved
(450KX/GX), 2-way interleaved (450KX/GX), or 4-way interleaved (450GX
only). Both single-sided and double-sided SIMMs are supported at 3.3
and 5 volts. DRAM technologies of 512kx8, 1Mx4, 2Mx8, 4Mx4, 8Mx8, and
16Mx4 at speeds of 50ns, 60ns, 70ns, and 80ns can be used. The maximum
memory size is 4 Gbytes for the 4-way interleaved configuration (450GX
only), 1 Gbyte (2 Gbytes for the 450GX) for the 2-way interleaved
configuration, and 512 Mbytes (1 Gbyte for the 450GX) for the
non-interleaved configuration. The MC provides data integrity
including ECC in the memory array, and parity on the host bus control
signals. The 450GX also provides ECC on the host data bus. The MC is
PC compatible. All ISA and EISA regions are decoded and shadowed based
on programmable configurations. Regions above 1 Mbyte with size 1
Mbyte or larger that are not mapped to memory may be reclaimed. Three
programmable memory gaps can be created. For the 450GX, two MCs can be
used in a system.
The Intel 450KX/GX PCIsets may contain design defects or errors known
as errata. Current characterized errata are available upon request.
----------------------------------------------------------------------
This document describes both the 82454KX and 82454GX
PCIsets. Unshaded areas describe features common to the 450KX and
450GX. Shaded areas, like this one, describe the 450GX operations
that differ from the 450KX.
----------------------------------------------------------------------
3.0 MC FUNCTIONAL DESCRIPTION
This section describes the MC functions and hardware interfaces
including the Memory and I/O Mapping, Host Bus Interface, DRAM
Interface, and Clocks and Reset.
3.1 Memory and I/O Map
The MC provides the interface between the host bus and main
memory. The processor memory space is 64 Gbytes (36-bit
addressing). An MC can control up to 1 Gbyte of memory for the 450KX
and 4 Gbytes of memory for the 450GX. The MC registers that control
memory space access are:
o Programmable Attribute Map (PAM[6:0]) Registers. These registers
provide Read Only, Write Only, and Read/Write Disable for fixed
memory regions in the PC compatibility area.
o Video Buffer Area Enable (VBA) Register. This register enables the
A0000–BFFFFh fixed region.
o Low Memory Gap (LMG) Register. This register defines a hole in
memory located from 1 to 4 Gbytes on any 1 Mbyte boundary where
accesses can be directed to the PCI bus (via the PB). The size can
be 1, 2, 4, 8, 16, or 32 Mbytes. This gap must be located below the
Memory Gap and High Memory Gap. The Low Memory Gap is used by ISA
devices such as LAN or linear frame buffers that are mapped into the
ISA Extended region, or by any EISA or PCI device.
o Memory Gap Registers (MG and MGUA) Registers. These two registers
define a hole in memory located from 1 to 64 Gbytes on any 1 Mbyte
boundary where accesses can be directed to the PCI bus (via the
PB). This gap (1, 2, 4, 8,16, or 32 Mbytes in size) must be located
above the Low Memory Gap and below the High Memory Gap areas. The
Memory Gap is used by ISA devices (e.g., LAN or linear frame
buffers) that are mapped into the ISA Extended region, or by any
EISA or PCI device.
o High Memory Gap Registers (HMGSA and HMGEA) Registers. These two
registers define a gap in memory that can be located from 1 to 64
Gbytes on any 1 Mbyte boundary where accesses can be directed to the
PCI bus (via the PB). The size ranges from 1 Mbyte to 64
Gbytes. This gap must be located above the Memory Gap and the Low
Memory Gap areas. The High Memory Gap provides additional support
for memory mapped I/O.
----------------------------------------------------------------------
• Base Address (BASEADD) Register. An 82453GX responds to memory
accesses between the address programmed into this register and the
calculated top of its memory range (calculated top of MC memory
address = base + memory size + Low Memory Gap size + Memory Gap
size + High Memory Gap size). Note that the DRAM memory behind the
memory gaps can be reclaimed.
----------------------------------------------------------------------
o SMMRAM Range (SMMR) Register and the SMMRAM Enable (SMME) Register
(Only when SMMEM# is asserted by the processor.). SM memory can
overlap with memory residing on the host bus or memory normally
residing on the PCI bus. When the SM range is enabled, SM accesses
are handled by the MC. If the SMMEM# signal is not asserted,
accesses to the MC’s enabled SM Range are ignored (this allows the
SM memory to overlap with memory normally residing on the host bus,
since the SMM Range may also be mapped through another MC range
register). The RSMI# signal may be asserted in the Response Phase by
a device in SMM power-down mode. The MC does not assert this signal.
o High BIOS (HBIOS) Register. The 64 Kbyte region from F0000–FFFFFh is
treated as a single block and is normally Read/Write disabled in the
MC(s) and Read/Write enabled in the PB. After power-on reset, this
region is R/W enabled in the PB (Compatibility PB only in the 450GX
and R/W disabled in the Auxiliary PB). Thus, the PB can respond to
fetches during system initialization. The Read/Write attributes for
this region may be used in conjunction with the Read/Write
attributes in the PB to "shadow" BIOS into RAM.
o I/O APIC Range (APICR) Register. This register provides an I/O APIC
configuration space. There is no I/O APIC in the PB or the MC.
o DRAM Row Limit (DRL) Registers. These registers define the upper and
lower addresses for each DRAM row and represent the boundary
addresses in 4 Mbyte granularity.
If a memory space access is in one of the above ranges, and that range
is enabled for memory access, the MC claims the transaction and
becomes the response agent.
The MC performs memory recovery on gap ranges greater than or equal to
1 Mbyte that are created by the Low Memory Gap, Memory Gap, and the
High Memory Gap areas. This memory is relocated to the top of the MC’s
memory. The MC performs a subtraction of the size of the hole in the
memory map to generate an effective memory address.
----------------------------------------------------------------------
For the 450GX, the base address for the MC that is not MC #0 must
include the size of any memory gaps programmed in the previous (or
lower base address) MC.
There can be up to two MCs in a system permitting up to 8 Gbytes of
system main memory. The portion of the processor’s memory space
controlled by an MC is determined by the Base Address Register and
memory size. In a PC architecture, the only restrictions on MC
placement are that there be memory starting at address 0 and that
there be enough memory to operate a system. The MCs in a system need
not have contiguous address spaces. The High Memory Gap in one MC
could be used to span the gap between the top of its memory map and
the base address of the other MC.
----------------------------------------------------------------------
Note that the PB (Compatibility PB in an 450GX dual PB system) is
responsible for claiming any unclaimed transactions on the host system
bus. Therefore, any memory space access that is above the top of
system main memory is claimed by the PB.
The MC has two registers located in the processor’s I/O space (0CF8h
and 0CFCh) that are used to configure the MC. See the Register
Description section for details.
3.2 Host Bus Interface
The Pentium Pro processor bus provides an efficient, reliable
interconnect between multiple Pentium Pro processors and the PB and
MC. The bus provides 36 bits of address, 64 bits of data, protection
signals needed to support data integrity, and the control signals to
maintain a coherent shared memory in the presence of multiple caches.
The Pentium Pro processor bus achieves high bus efficiency by
providing support for multiple, pipelined transactions and deferred
replies. A single Pentium Pro processor may have up to four
transactions outstanding at the same time, and can be configured to
support up to eight transactions active on the Pentium Pro processor
bus at any one time. The MC supports up to four transactions that
target its associated memory space. The MC contains read and write
buffers for memory accesses.
AERR#. An AERR# on the host bus stops traffic in the memory
controller. Reporting is done by the 82454 (PB).
BINIT#. A BINIT# on the Host bus resets the 450KX/GX host bus state
machines. This allows for logging or recovery from catastrophic bus
errors. Note that during the last clock of a BINIT# pulse, ADS# may
not be asserted as this will start the host bus state machine
prematurely.
3.3 DRAM Interface
In the following discussion the term row refers to the set of memory
devices that are simultaneously selected by a RAS# signal. A row may
be composed of two or more single-sided SIMMs, or one side (the same
side) from two or more double-sided SIMMs. An interleave is 72-bits
wide (64 data bits plus 8 bits of ECC) and requires two 36 bit
SIMMs. The term page refers to the data within a row that is selected
by a row address and is held active in the device waiting for a column
address to be asserted.
The MC interfaces the main memory DRAM to the host bus. For the 450KX,
two basic DRAM configurations are supported—2-way interleaved (or 2:1
interleaved), and non-interleaved (or 1:1 interleaved). In the 2-way
and non-interleaved configurations, a row is made up of 4 SIMM sides
and 2 SIMM sides respectively. There can be up to 1 Gbyte of DRAM for
a 2-way interleaved configuration and 512 Mbytes of DRAM for a
non-interleaved configuration as shown in Table 22. The MC is fully
configurable through the MC’s configuration registers.
----------------------------------------------------------------------
For the 450GX, three basic DRAM configurations are supported—4-way
interleaved (4:1 interleaved), 2-way interleaved, and
non-interleaved. In the 4-way interleaved configuration, a row is
made up of 8 36-bit SIMM sides. In the 2-way interleaved and
non-interleaved configurations, a row is made up of 4 SIMM sides and
2 SIMM sides respectively. There can be up to 4 Gbytes of DRAM for a
4-way interleaved configuration, 2Gbytes for a 2-way interleaved
configuration, and 1Gbyte for a non-interleaved configuration.
----------------------------------------------------------------------
Configurations cannot be mixed. The MC does not support portions of
the memory being 2-way interleaved and other portions being
non-interleaved. The system does, however, support a 2-way interleaved
design in which one interleave is populated (operates as a
non-interleaved configuration). There is no restriction on which
interleave is populated (0 or 1) to form a non-interleaved
configuration, as long as all rows are populated in the same way.
----------------------------------------------------------------------
The 450GX MC does not support portions of the memory being 4-way
interleaved and other portions being non-interleaved or 2-way
interleaved. The system does, however, support a 4-way or 2-way
interleaved design in which one interleave is populated (operates as
a non-interleaved configuration) or a 4-way interleaved design in
which two interleaves are populated (operates as a 2-way
configuration). There is no restriction on which interleaves are
populated to form a non-interleaved or 2-way interleaved
configuration, as long as all rows are populated in the same way.
----------------------------------------------------------------------
Table 22 [see datasheet] provides a summary of the characteristics of
memory configurations supported by the 450KX/GX MC. Minimum values
listed are obtained with single-sided SIMMs, and maximum values are
obtained with doublesided SIMMs.
***Configurations:...
***Features:...
**
**Support Chips:
**82091AA Advanced Interface Peripheral (AIP) c93...
**8289 Bus Arbiter (808x) c79...
**82289 Bus Arbiter for iAPX 286 Processor Family c83
***Info:...
***Info:...
***Versions:...
***Features:...
**82258 Advanced Direct Memory Access Coprocessor(ADMA) 01/01/84...
**82335 High-Integration Interface Device For 386SX c:Nov88...
**82360SL I/O Subsystem 10/05/90...
**82370 Integrated System Peripheral (for 82376) c:Oct88...
**82371FB/SB PCI ISA IDE Xcelerator 82371FB/82371SB (PIIX/3) 01/31/95...
**82371MX Mobile PCI I/O IDE Xcelerator (MPIIX) 11/01/95...
**82371AB PCI-TO-ISA / IDE Xcelerator 82371AB (PIIX4) 02/17/97...
**82374/82375 PCI-EISA Bridge (82374EB/82375EB, 374SB/375SB) c:Mar93...
***Configurations:
82374EB + 82375EB (c93)
82374SB + 82375SB (c94)
***Features:...
**82378 System I/O (SIO) (82378IB and 82378ZB) c:Mar93...
**82379AB System I/O-APIC (SIO.A) <Dec94...
**82380 32-bit DMA Controller w/ Integrated Peripherals 02/01/87...
**82380FB/AB PCIset: 82380FB Mobile PCI-to-PCI Bridge(MPCI2) 02/17/97...
**82384 Clock Generator and Reset Interface c86...
**82385 32-bit Cache Controller for 80386 09/29/87...
**82385SX 32-bit Cache Controller for 80386SX 01/25/89...
**82395DX High Performance Smart Cache 06/18/90
***Notes:...
***Info:...
***Versions:...
***Features:...
**82395SX Smart Cache 12/17/90...
**82396SX Smart Cache 12/17/90
***Notes:...
***Info:...
***Versions:...
***Features:...
**82485 Turbo Cache (and 485Turbocache) c90...
**82489DX Advanced Programmable Interrupt Controller 10/12/92...
**82495DX/490DX DX CPU-Cache Chip Set <Sep91
***Notes:...
***Info:...
***Configurations:...
***Features:...
**82495XP/490XP Cache Controller / Cache RAM (for i860) 06/05/91...
**82496/491 Cache Controller / Cache RAM (for P5 Pentium) 03/22/93...
**82497/492 Cache Controller / Cache RAM (for P54 Pentium) <Nov94...
**82498/493 Cache Controller / Cache RAM (for P54 Pentium) <Nov94...
***Features:
o High Performance Second Level Cache
- Zero Wait States at 66 MHz
- Two-Way Set Associative
- Writeback with MESI Protocol
- Concurrent CPU Bus and Memory Bus Operation
- Boundary Scan
o Pentium Processor (735\90, 815\100)
- Chip Set Version of Pentium Processor (735\90, 815\100)
- Superscalar Architecture
- Enhanced Floating Point
- On-Chip 8K Code and 8K Data Caches
- See Pentium Processor Family Data Book for More Information
o Highly Flexible
- 1 Mbyte to 2 Mbyte
- 64-, or 128-Bit Wide Memory Bus
- Synchronous, Asynchronous and Strobed Memory Bus Operation
- Selectable Bus Widths, Line Sizes, Transfers and Burst Orders
o Full Multiprocessing Support
- Concurrent CPU, Memory Bus and Snoop Operations
- Complete MESI Protocol
- Internal/External Parity Generation/Checking
- Supports Read For Ownership, Write-Allocation and Cache-to-Cache
Transfers
**
**Later chipsets (basic spec):
**440 series:...
**450NX (?) 06/29/98:...
**????? (Profusion) c:99...
**800 series...
***815p (Solano-3) c:Mar'01
Chips:
[82815P] (MCH) [82801AA] (ICH) [82802] (FWH)
CPUs: P-III/P-III(T)*1/Celeron
DRAM Types: SDRAM PC133
Mem Rows: 6
DRAM Density: 64Mbit 128Mbit 256Mbit
Max Mem: 512MB
ECC/Parity: No
AGP speed: 1x 2x 4x
Bus Speed: 66 100 133
PCI Clock/Bus: 1/2 1/3 1/4 PCI 2.2
>*1 P-III Tualatin first supported from B-0 stepping of chipset.
***815g (Solano-3) c:Sep'01...
***815eg (Solano-3) c:Sep'01...
***820 (Camino) 11/15/99...
***820e (Camino-2) 06/05/00...
***830M (Almador) 07/30/01...
***830MP (Almador) 07/30/01...
***830MG (Almador) 07/30/01...
***840 (Carmel) 10/25/99...
***845 (Brookdale) 09/10/01...
***845MP (Brookdale-M) 03/04/02...
***845MZ (Brookdale-M) 03/04/02...
***845E (Brookdale-E) 05/20/02...
***845G (Brookdale-G) 05/20/02...
***845GL (Brookdale-GL) 05/20/02
Chips:
[82845GL] (GMCH) [82801DB] (ICH4)
CPUs: Celeron
DRAM Types: DDR 266/ SDRAM PC133
Mem Rows: --
DRAM Density: 64Mbit 128Mbit 256Mbit
Max Mem: 2GB
ECC/Parity: no
AGP speed: integrated
Bus Speed: 400 MT/s (100 MHz QDR)
PCI Clock/Bus: 1/3 PCI 2.2
***845GE (Brookdale-GE) 10/07/02...
***845PE (Brookdale-PE) 10/07/02...
***845GV (Brookdale-GV) 10/07/02...
***848P (Breeds Hill) c:Aug'03...
***850 (Tehama) 11/20/00...
***850E (Tehama-E) 05/06/02...
***852GM (Montara-GM) 01/14/03...
***852GMV (Montara-GM) ???...
***852PM (Montara-GM) 06/11/03...
***852GME (Montara-GM) 06/11/03...
***854 (?) 04/11/05...
***855GM (Montara-GM) 03/12/03...
***855GME (Montara-GM) 03/12/03...
***855PM (Odem) 03/12/03...
***860 (Colusa) 05/21/01...
***865G (Springdale) 05/21/03...
***865PE (Springdale-PE) 05/21/03...
***865P (Springdale-P) 05/21/03...
***865GV (Springdale-GV) c:Sep'03...
***875P (Canterwood) 04/14/03...
*Headland/G2...
**GC101/102 12/16MHz PC/AT Compatible Chip Set c:Feb88
***Info:...
***Configurations:...
***Features:...
**GC101/102/103 12/16MHz PC/AT Compatible Chip Set + EMS 4.0 c:Jul89...
**GCK113 80386 AT Compatible Chip Set c:oct89...
**GCK181 Universal PS/2 Chip Set c:Mar89...
**HT11 Single 286 AT Chip [no datasheet] <Aug90...
**HT12/+/A Single 286 AT Chip with EMS support c:Aug90...
**HT18 80386SX Single Chip c:Sep91...
**HT21 386SX/286 Single Chip (20 MHz) c:Aug91...
**HT22 386SX/286 Single Chip (25 MHz) c:Sep91...
**HT25 3-volt Core Logic for 386SX c:Dec92...
**HT35 Single-Chip Peripheral Controller [partial info] ?...
**HTK320 386DX Chip Set c:Sep91...
**HTK340 "Shasta" 486 Chip Set c:Jun92...
***Features:
o Support for 486SX/DX/DX2 CPU
o 2 - 184 pin PQFP devices
o Local bus interface
o 16, 20, 25 and 33MHz CPU speeds
o Fully static operation
o Weitek 4167 supported
o System and Video BIOS on single ROM
o Uses 0.7 Micron HCMOS process
ISA Controller
o AT Compatible
o Synchronized 8MHz ISA bus
o Posted backplane memory writes
o 10 or 16 bit l/O mapping
o Integrated 82375, 82593 and 8254 functionality
o Fast gate A20/Fast reset
Write Buffer
o 4 deep on-chip buffer
o Byte gathering
o Out of order operation
o Full or partial write buffer hits
DRAM Controller
o Line burst capability from DRAM to 80486
o 256K/1M/4M/16M DRAMs
o Mixed memory types
o EMS 4.0
o Hidden refresh operation
o 256MB Maximum system memory
o Staggered refresh
o Shadowing in 16KB increments between 640KB and 1MB
o Remapping
o Fast paging
o 2 or 4 way interleaving
**Support Chips:
**HT44 Secondary Cache c:Jun92...
**Other:...
*HMC (Hulon Microelectronics)...
*Logicstar...
*Motorola...
*OPTi...
*PC CHIPS/Amptron/Atrend/ECS/Elpina/etc...
*SIS...
**85C360 ISA 386DX Single Chip chipset [no datasheet] ?
***Notes:...
**85C401/402 ISA 486DX/SX Cache chipset [no datasheet] ?...
**85C406/5/411/420/431 EISA 386/486 Chipset [no datasheet] c91...
**85C460 ISA 386DX/486 Single Chip [no datasheet] ?
**85C461 ISA 386DX/486 Single Chip [no datasheet] ?...
**85C471/407 Green PC ISA-VLB 486 Single Chip <94
***Info:...
***Configurations:...
***Features:...
**85C496/497 486-VIP 486 Green PC VESA/ISA/PCI Chipset <95
***Info:...
***Configurations:...
***Features:...
**85C501/502/503 Pentium/P54C PCI/ISA Chipset <01/09/95...
**5101/5102/5103 Pentium/P54C PCI/ISA Chipset <04/02/95...
**5120 Pentium PCI/ISA Chipset (Mobile) <01/28/97...
**5501/5502/5503 Pentium/P54C PCI/ISA Chipset <04/02/95
***Info:...
***Configurations:...
***Features:...
**5511/5512/5513 Pentium PCI/ISA <06/14/95...
**5571 (Trinity) Pentium PCI/ISA Chipset (75MHz) <12/09/96...
**5581/5582 (Jessie) Pentium PCI/ISA Chipset (75MHz) <04/15/97...
**5591/5592/5595 (David) Pentium PCI A.G.P. Chipset <01/09/98...
**5596/5513 (Genesis) Pentium PCI Chipset <03/26/96
***Info:...
***Configurations:...
***Features:...
**5597/5598 (Jedi) Pentium PCI/ISA Chipset <04/15/97...
**530/5595 (Sinbad) Host, PCI, 3D Graphics & Mem. Ctrl.<11/10/98
***Info:...
***Configurations:...
***Features:...
**540 (Spartan) Super7 2D/3D Ultra-AGP Single C.S.<11/30/99...
**55x SoC (System-on-chip) <03/14/02...
**
**Support chips:
**85C206 Integrated Peripheral Controller [no datasheet] ?
***Notes:...
**5595 Pentium PCI System I/O <12/24/97...
**950 LPC I/O <07/16/99...
**Other:...
**PII/III/Pro...
**Athlon etc...
*Symphony...
*TI (Texas Instruments)...
**SN74LS610/2 IBM AT: SN74LS610, SN74LS612 Memory Mappers <84
***Notes:...
***Info:
Each 'LS610 and 'LS612 memory mapper integrated circuit contains a
4-line to 16-line decoder, a 16-word by 12-bit RAM, 16 channels of
2-line to 1-line multiplexers, and other miscellaneous circuitry on a
monolithic chip. Each 'LS610 also contains 12 latches with an enable
control.
The memory mappers are designed to expand a microprocessor's memory
addressing capability by eight bits. Four bits of the memory address
bus (see System Block Diagram)[see datasheet] can be used to select
one of 16 map registers that contain 12 bits each. these 12 bits are
presented to the system memory address bus through the map output
buffers along with the unused memory address bits from the CPU.
However, addressable memory space without reloading the map registers
is the same as would be available with the memory mapper left out.
The addressable memory space is increased only by periodically
reloading the map registers from the data bus. This configuration
lends itself to memory utilization of 16 pages of 2^(n-4) registers
each without reloading (n - number of address bits available from
CPU).
These devices have four modes of operation: read, write, map, and
pass. Data may be read from or loaded into the map register selected
by the register select inputs (RS0 thru RS3) under control of R/W
whenever chip select (CS) is low. The data I/O takes place on the data
bus DO thru D7. The map operation will output the contents of the map
register selected by the map address inputs (MA0 thru MA3) when CS is
high and MM (map mode control) is low. The 'LS612 output stages are
transparent in this mode, while the 'LS610 outputs may be transparent
or latched. When CS and MM are both high (pass mode), the address bits
on MA0 thru MA3 appear at M08-MO11, respectively (assuming appropriate
latch control) with low levels in the other bit positions on the map
outputs.
***Versions:...
***Features:...
**TACT82000 3-Chip 286 [no datasheet] c89...
**TACT82411 Snake Single-Chip AT Controller c90...
**TACT82S411 Snake+ Single-Chip AT Controller [no datasheet] c91...
**TACT83000 AT 'Tiger' Chip Set (386) c89...
**TACT84500 AT Chip Set (486, EISA) [no datasheet, some info] c91...
**Other:...
*UMC...
**UM82152 Cache Controller (AUStek A38152 clone) <91
***Info:...
***Versions:...
***Features:...
**UM82C852 Multi I/O For XT <91...
**UM82C206 Integrated Peripheral Controller <91...
**UM82c45x Serial/Parallel chips ?...
**Other chips:...
***Peripheral:
UM2661 Enhanced Programmable Communications Interface (EPCI)
UM2681 Dual Asynchronous Receiver/Transmitter (DUART)
UM6520/A Peripheral Interface Adapter(PIA) (MC6820)
UM6521/A Peripheral Interface Adapter(PIA) (MC6821)
UM6522/A Versatile Interface Adapter (VIA)
UM6532/A RAM, I/O, Timer Array
UM6551 Asynchronous Communication Interface Adapter (ACIA)
UM82C01 Capacitance Keyboard Encoder (CKE)
UM82C11-C Printer Adapter Interface (PAI)
UM82C450 Asynchronous Communication Element (ACE)
UM82C451 Parallel/Asynchronous Communication Element
UM82C452 Single Chip Multi-I/O (Serial/Parallel)
UM82C550 Asynchronous Communications Element with FIFOs
UM82450 Asynchronous Communication Element (ACE)
UM8250A Asynchronous Communication Element (ACE)
UM8250B Asynchronous Communication Element (ACE)
UM82C8167 RTC
***Other:...
*Unresearched:...
**A - D...
**E - G...
**H - I...
**J - R...
**S...
***Other
Summit chipset - 3/486
Samsung KS82C884
SOLUTIONS 88C211, 88C212, 88C215, P82C206 - isa 386sx c1990
ST Microelectronics PC Client ST86 processor
**T - Z...
***Toshiba ...
***UniChip ...
***USA...
***Other...
*VIA
**SL9XXX FlexSet family General information...
**SL9011 System Controller (80286/80386SX/DX, 16/20/25MHz) <Jan90...
**SL9020 Data Controller <Jan90...
**SL9025 Address Controller <Jan90...
**SL9030 Integrated Peripheral Controller <Jan90...
**SL9090/A Universal PC/AT Clock Chip <oct88...
**SL9095 Power Management Unit ?
***Info:...
***Versions:...
***Features:...
**SL9151 80286 Page Interleave Memory Controller (16-25MHz) ?...
**SL9250 80386SX Page Mode Memory Controller (16/20MHz 8MB) ?
***Info:...
***Versions:...
***Features:...
**SL9251 80386SX Page Interleave Memory Controller <04/13/90...
**SL9252 80386SX System and Memory Controller <06/12/90...
**SL9350 80386DX Page Mode Memory Controller (16-25MHz 16MB) ?
***Info:...
***Versions:...
***Features:...
**SL9351 80386DX Page Interleave Memory Controller (33MHz) ?
***Info:...
***Versions:...
***Features:...
**SL9352 80386DX System and Memory Controller <06/12/90...
**SLXXXX Other chips...
**
**VT82C470 "Jupiter", Chip Set (w/o cache) 386 [no datasheet] ?
**VT82C475 "Jupiter", Chip Set (w/cache) 386 [no datasheet] ?
**VT82C486/2/3 "GMC chipset" [no datasheet, some info] ?
***Notes:...
***Info:
8) The VIA GMC chipset (VIA: 1106/4358) (5/18/96)
--------------------
This chipset includes the VIA VT82C486A-F with a built-in 8042
keyboard controller and a VIA VT82C505-D chipset for the VESA to PCI
bridge. Specifically, the chips are as follows:
82C486A - cache/memory controller + VLB to ISA bridge
82C482 - VLB to ISA bridge (why there are two I'm not sure)
82C483 - DRAM controller
VT82C505 PCI to VLB bridge
A board using this chipset has been unstable (even under DOS/Win), and
did not work with an Adaptec 2940 SCSI controller under OS/2 at all.
Boards based on this chipset are therefore to be avoided. I have,
however, had one report of success from someone using revision G of
this chipset, so it could be that the new revision fixes problems with
older rev's. Designers with whom I've corresponded indicate that
improperly designed boards which use this chipset may have unstable
caches. In addition, the cache controller reads the data into the
cache SRAMs first, then into the CPU, increasing latency and reducing
throughput.
***Configurations:...
**VT82C495/480 "Venus" Chip Set [no datasheet] ?
**VT82C495/491 ? EISA Chip Set [no datasheet, some info] <93...
**VT82C496G Pluto, Green PC 80486 PCI/VL/ISA System <05/30/94...
**VT82C530MV 3.3V Pentium chipset [no datasheet, some info]<05/30/94...
**VT82C570M Apollo Master, Green Pentium/P54C <06/22/95...
**VT82C580VP Apollo VP, Pentium/M1/K5 PCI/ISA System <02/15/96...
**VT82C580VPX Apollo VPX, VPX/97, Pentium with 66/75MHz Bus <01/09/97...
**VT82C590 Apollo VP2, VP2/97, Single-Chip Pentium 66MHz <01/10/97...
**VT82C597/AT Apollo VP3, Single-Chip for Pentium with AGP <10/03/97
***Info:...
***Configurations:...
***Features:...
**VT82C598MVP Apollo MVP3,Single-Chip 66/75/83/100MHz & AGP <09/22/97...
**VT8501 Apollo MVP4,Single-Chip 66-100MHz & AGP <11/04/98...
**VT82C680 Apollo P6, Pentium-Pro Chip Set <08/30/96
***Notes:...
***Info:...
***Configurations:...
***Features:...
**Support chips:
**VT82C505 Pentium/486 VL to PCI Bridge <05/30/94...
**VT82C586/A/B PCI Integrated Peripheral Controller <10/13/96...
**VT82C596/A Mobile PCI Integrated Peripheral Controller <11/05/97...
**VT82C686A/B PCI Super-I/O Integrated Peripheral Ctrl. <02/10/98...
**Later P-Pro/II/III/Celeron...
**Later AMD...
**Other...
*VLSI...
**Notes:...
**VL82C*** IBM/INTEL Direct replacement ?...
**VL82CPCAT-QC AT 12 MHz 0/1 ws c88...
***Basics:
Max 12MHz "Popular 12 MHz Chip Set"
***Info:
****Overview:...
****VL82C100 ------- PC/AT-Compatible Peripheral Controller...
****VL82C101A/101B - PC/AT-Compatible System Controller...
****VL82C102A ------ PC/AT-Compatible Memory Controller...
****VL82C103/103A -- PC/AT-Compatible Address Buffer...
****VL82C104 - PC/AT-Compatible Data Buffer...
***Configurations:...
***Features:...
**VL82CPCPM-QC AT 16 MHz 0/1 ws [no datasheet] c88...
**VL82CPCAT-16QC/-20QC AT 16 MHz or 20 MHz, 0/1 ws +386SX c89...
**VL82CPCPM-16QC/-20QC AT 16 MHz or 20 MHz, Page-Mode +386SX c89...
**VL82C031/032/033 PS/2 Model 30-compatible chip set c88...
**VL82C286-SET TOPCAT 286/386SX PC/AT-Compatible Chip Set ?...
**VL82C386-SET TOPCAT 386DX PC/AT-Compatible Chip Set ?...
**VL82C386sx-SET TOPCAT 286/386SX PC/AT-Compatible Chip Set ?...
**VL82C310 SCAMP-LT ?...
**VL82C311 SCAMP-DT ?...
**VL82C311L SCAMP-DT 286 ?...
**VL82C312 SCAMP Power Management Unit (PMU) ?...
**VL82C315A SCAMP II, Low-Power Notebook Chipset ?...
***Configurations:
VL82C315A-FC
Configurations:
VL82C315A
VL82C315A + VL82C325 (Cache controller)
VL82C315A + VL82C322A (PMU)
VL82C315A + VL82C325 + VL82C322A
Either the VL82C113 or the VL82C114 Combination I/O *should* work with
this chip set.
***Features:...
**VL82C322A SCAMP II, Power Management Unit (PMU) ?...
**VL82C316 SCAMP II, PC/AT-Compatible System Controller ?...
**VL82C323 SCAMP II, 5 Volt Power Management Unit (PMU) ?...
**VL82C380 Single chip 386DX PC/AT Controller +on-chip cache ?...
**VL82C325 VL82C386SX System Cache controller ?
***Info:...
***Versions:...
***Features:...
**VL82C335 VL82C386DX System Cache ctrl. [no d.sheet] ?...
**VL82C315A/322A/3216 Kodiak 32-Bit Low-Voltage Chip Set ?...
**VL82C420/144/146 SCAMP IV [no datasheet, some info] c93...
***Notes:
from:http://www.cbronline.com/news/vlsi_technology_has_80486sl_notebook_chip_set
The SCAMP IV set comprises three devices - VL82C420 system controller,
VL82C144 peripheral combination chip, and optional VL82C146 ExCA
controller. A standard SCAMP IV system design can be completed with as
few as three TTL components. The devices in the set interconnect via
the VLSI proprietary Multiplexed Local Bus interface; they are
implemented in 0.8 micron CMOS and support mixed voltage operation at
3V and 5V. The VL82C420 is designed to be tightly coupled with the
power-managed Intel CPUs running at up to 33MHz including ones with
clock- doublers. The memory controller supports up to 32Mb.The
peripherals chip also includes floppy disk controller with digital
data separator, a 16C550-compatible universal asynchronous
transmitter-receiver with infra-red support. Power management features
include socket power control, 3.3V/5V suspend with modem and ring
resume detection and power saving with Window inactivity. Up to four
VL82C146s can be used in each system. Samples August, volume October
at $32.50 for the VL82C420, $25.00 for the VL82C144 and $8.50 for the
VL82C146 for 1,000-up.
**VL82C480 System/Cache/ISA bus Controller ?...
**VL82C481 System/Cache/ISA bus Controller c92...
**VL82C486 Single-Chip 486, SC486, Controller ?...
**VL82C425 486 Cache controller ?...
**???????? Cheetah 486, PCI [no datasheet] ?...
**VL82C3216 Bus Expanding Controller Cache with write buffer ?
***Info:...
***Versions:...
***Features:
o High-performance 386DX, 486SX or 486DX interface
o Write buffer - 64 byte (16 DWord)
o External second-level cache - 128 KB
o i486 internal cache control
o BIOS control of second-level cache
o 386SX local bus emulation
o 386SX local bus address pipelining with four word FIFO
o 32-16 bit cycle type translation
o Auto peek cycle operations for both first and second-level cache
o i486 BIOS initialize
o 40 MHz max CPU freq @ 5.0V
33 MHZ max SX freq @ 5.0V
25 MHz max CPU and SX freq @ 3.3V
o Power management plus support for AMD's system Management Mode
(SMM)
o 0.8-micron CMOS technology
o 160-lead metric quad flat pack (MQFP)
**VL82C521/522 Lynx/M ?...
**VL82C530 Eagle Ð c95...
**VL82C541/543 Lynx c95...
**VL82C591/593 SuperCore 590 c94...
**VL82C594/596/597 Wildcat c95...
**I/O Chips:
**VL82C106 Combination I/O chip ?...
**VL82C107 SCAMP Combination I/O chip ?...
**VL82C108 TOPCAT Combination I/O chip ?...
**VL82C110 Combination I/O chip ?...
**VL82C113 SCAMP Combination I/O chip ?...
**VL82C114 Combination I/O chip ?...
**Video: ...
**Disk:...
**Modems:...
**Other:...
**Not sure if they actually exist...
*Western Digital...
**FE6500 CPU Core Logic for PS/2 Model 70/80 Compatibles c:88
***Notes:...
***Info:
****General:...
****FE6000 Enhanced CPU and Peripheral and Control Logic:...
****FE6010 DMA and Channel Control logic:...
****FE6022 Address and Data Buffer Devices:...
****FE6030 Cache/DRAM and Channel Control Device:...
***Configurations:...
***Features:...
**WD6400SX/LP CPU Core Logic for PS/2 386SX Compatibles <90...
**WD6500 CPU Core Logic for PS/2 386DX/486 Compatible <90...
**WD7600A/LP/LV System Chip Set for 80286 or 80386SX <11/25/91...
**WD7700/LP System Chip Set for 80286 or 80386SX (Cache) <11/25/91...
**WD7855 System controller for 80386SX <09/25/92...
**WD7900/LP/LV System Chip Set for 80286 or 80386SX (Cache) <11/25/91...
**WD8110 System controller for 80386DX/486 <11/30/93...
**
**Support Chips:
**WD76C20x Floppy, RTC, IDE and Support Logic Device <11/25/91...
***Info:
GENERAL DESCRIPTION
The WD76C20 is a member of the WD7600 chip set which provides a
cost-effective, power-efficient solution to PC systems design,
especially those relating to "lap-top" devices. The set includes the
WD76C10, the WD76C20, and the WD76C30 as shown in Figure 1-1. Together
these chips provide all necessary logic to build a fully integrated
system board for several varieties of IBM PC/AT compatibles including
systems using 80286, 80386SX, and 80C286 processors.
As part of this chip set, the WD76C20 provides these integral
functions:
o Bus Interface Logic
o IDE Interface
o Chip Select Logic
o Floppy Disk Controller
o Real Time Clock
o Suspend/Resume Logic
The Floppy Disk Controller (FDC) component provides necessary timing
and signalling between the host processor peripheral bus and a floppy
disk drive through a cable connector.
The Real Time Clock component provides calendar and clock information
for the system.
The IDE Interface controls buffering between the system's AT Bus and
PC/AT compatible IDE drive interface.
The Bus Interface Logic controls buffering of data between the
system's AT Bus and the WD76C20.
The Chip Select Logic section provides decoding for selected chip
functions both within the WD76C20 and on the PC/AT motherboard.
Suspend/Resume Logic provides support for chip set power-down and
resume sequences.
***Versions:...
***Features:...
**WD76C30x Perip. Ctrl, Interrupt Multiplex, and Clock Gen <11/18/91...
**WD7615 Desktop Buffer Manager <04/15/92...
**WD7625 Desktop Buffer Manager <10/01/92...
**WD8120LV Super I/O [no datasheet] ?
**Other Chips:...
*Winbond...
**W83977EF WINBOND I/O (Multi I/O) <98
***Info:...
***Versions:...
***Features:...
**W83977ATF WINBOND I/O (Multi I/O) <98...
**
**Disk Controller:
**W83759/A/F/AF Advanced VL-IDE Disk Controller <96
***Notes:
Information taken from W83759A datasheet which lists differences to
the W83759. The datasheet is not for the W83759 and W83759A
***Info:...
***Versions:...
***Features:...
**W83769 Local Bus IDE Solution <94
***Info:...
***Versions:...
***Features:...
**
**UARTS:
**W86C250A UART (equivalent of INS8C250A) [no datasheet]
**W86C450/P Universal Asynchronous Receiver/Transmitter <Jul89...
**W86C451 I/O controller for IBM PC/AT/XT <Jul89...
**W86C452 I/O controller for IBM PC/AT Jul89...
**W86C456 I/O controller [no datasheet] ?
**W860551/P UART with FIFO and Printer Port Controller <94...
**
**Other:...
*ZyMOS...
*General Sources:...
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