[Home] [This version is outdated, a new version is here]
*Title...
*Search:...
*Read Me/FAQ/General Info...
*_IBM...
*ACC Micro...
*ALD...
*ALi...
*AMD . . . . . . . [no datasheets, some info]...
*Chips & Technologies...
*Contaq . . . . . [no datasheets, some info]...
*Efar Microsystems [no datasheets, some info]...
*ETEQ...
*Faraday...
*Forex . . . . . . [List only, no datasheets found]...
*Intel...
**82430HX PCIset (Pentium) HX (Triton II) (82439HX) 02/12/96
***Notes:...
***Info:
The Intel 430HX PCIset consists of the 82439HX System Controller (TXC)
and the 82371SB PCI I/O IDE Xcelerator (PIIX3). The TXC is a
single-chip host-to-PCI bridge and provides the second level cache
control and DRAM control functions. The second level (L2) cache
controller supports a write-back cache policy for cache sizes of 256
Kbytes and 512 Kbytes. Cacheless designs are also supported. The cache
memory is implemented with synchronous pipelined burst SRAMs. An
external Tag RAM is used for the address tag and an internal Tag RAM
for the cache line status bits. The TXC provides a 64/72-bit data path
to main memory and memory sizes up to 512 Mbytes. The DRAM controller
provides eight rows and optional DRAM Error detection/correction or
parity. The TXC‘s optimized PCI interface allows the CPU to sustain
the highest possible bandwidth to the graphics frame buffer at all
frequencies. Using the snoop ahead feature, The TXC allows PCI masters
to achieve full PCI bandwidth. For increased system performance, the
TXC contains read prefetch and posted write buffers.
1.0. ARCHITECTURE OVERVIEW
The TXC interfaces with the Pentium processor host bus, a dedicated
memory data bus, and the PCI bus (Figure 1) [see datasheet]. The TXC
connects directly to the Pentium processor 3V host bus, directly to 5V
or 3V DRAMs. and directly to the 5V PCI bus. The Intel 430HX PCIset
consists of the 82439HX TXC and the PCI IDE/ISA Xcellerator (PIIXS)
components. PIIXS provides the PCI-to-ISA bridge functions along with
other features such as a fast IDE interface, Plug'n-Play port, APIC
interface, Universal Serial Bus (USB) and PCI 2.1 Compliance
operation.
Data Flow
Processor cycles are sent directly to the second level cache with
control for the second level cache provided by the TXC. All other
processor cycles are sent to their destination (DRAM, PCI or internal
TXC configuration space) via the TXC. PCI Master cycles are sent to
main memory through the TXC. The TXC performs snoop or inquire cycles
using the host bus.
DRAM Interface
The DRAM interface is a 64/72-bit data path that supports both
standard page mode and Extended Data Out (EDO) memory. The DRAM
interface supports 4 Mbytes to 512 Mbytes with 8 RAS lines and also
supports symmetrical and asymmetrical addressing for 1M, 2M, and 4M
deep SIMMs and symmetrical addressing for 16-Mbyte deep SIMMs.
Second Level Cache
The TXC supports a write-back cache policy providing all necessary
snoop functions and inquire cycles. The second level cache is direct
mapped and supports both a 256-Kbyte or 512-Kbyte SRAM configuration
using pipelined burst SRAMs. The burst 256-Kbyte configuration
performance is 3-1-1-1 for read/write cycles; pipelined back-to-back
reads can maintain a 3-1-1-1-1-1-1-1 transfer rate. An optional mode
extends the DRAM L2 cacheability range to 512 Mbytes.
PCI Interface
The PCI interface is 2.1 compliant and supports up to 4 PCI bus
masters in addition to the PIIX3 bus master requests. The PCI-to-DRAM
interface can reach a 112 Mbyte/sec transfer rate for reads and 121
Mbytes/sec for writes.
Data Path and Buffers
The TXC data path is optimized for minimum latency and maximum
throughput operation from both the CPU and PCI masters. The TXC
contains two physical sets of buffers for optimizing data flow. A
6-DWord buffer is provided for CPU-to-PCI writes that helps maximize
the graphic writes to PCI bandwidth. An 8-QWord deep merging memory
buffer is provided that is used for CPU-to-main memory writes,
write-back cycles (Posted at 3111), PCI-to-main memory write
posting. and PCI-from-main memory read prefetching.
Error Detection and Correction
Parity or error correction are software configurable options (parity
is the default). The ECC mode provides single-error correction,
double-error detection, and detection of all errors confined to a
single nibble for the DRAM memory subsystem.
***Configurations:...
***Features:...
**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...
**
**Support Chips:
**82091AA Advanced Interface Peripheral (AIP) c93...
**8289 Bus Arbiter (808x) c79...
**82289 Bus Arbiter for iAPX 286 Processor Family c83...
**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...
**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...
**82395SX Smart Cache 12/17/90
***Notes:...
**82396SX Smart Cache 12/17/90...
**82485 Turbo Cache (and 485Turbocache) c90...
**82489DX Advanced Programmable Interrupt Controller 10/12/92...
**82495DX/490DX DX CPU-Cache Chip Set <Sep91...
**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...
**
**Later chipsets (basic spec):
**440 series:...
**450NX (?) 06/29/98:...
**????? (Profusion) c:99...
**800 series...
*Headland/G2...
*HMC (Hulon Microelectronics)...
*Logicstar...
*Motorola...
*OPTi...
*PC CHIPS/Amptron/Atrend/ECS/Elpina/etc...
*SIS...
**5571 (Trinity) Pentium PCI/ISA Chipset (75MHz) <12/09/96
***Info:...
***Configurations:...
***Features:
o Supports Intel Pentium CPU and other compatible CPU at
75/66/60/50MHz (external clock speed)
o Supports the Pipelined Address Mode of Pentium CPU
o Supports the Full 64-bit Pentium Processor data Bus
o Supports 32-bit PCI Interface
o Integrated Second Level (L2) Cache Controller
- Write Through and Write Back Cache Modes
- 8 bits or 7 bits Tag with Direct Mapped Cache Organization
- Integrated 16K bits Dirty Ram
- Supports Pipelined Burst SRAM
- Supports 256 KBytes to 512 MBytes Cache Sizes
- Cache Read/Write Cycle of 3-1-1-1-1-1-1-1 at 66 MHz
o Integrated DRAM Controller
- Supports 3 Banks of FP/EDO SIMMs, or 2 Banks of SDRAM DIMMs
- Supports 2Mbytes to 384Mbytes of main memory
- Supports 256K/512K/1M/2M/4M/16M x N FP/EDO/SDRAM DRAM
- Supports 3V or 5V DRAM.
- Supports Symmetrical and Asymmetrical DRAM.
- Supports 32 bits/64 bits mixed mode configuration
- Supports Concurrent Write Back for FP/EDO DRAM
- Supports Mixed DRAM (FP/EDO/SDRAM) Technology
- Supports CAS before RAS Refresh
- Supports Relocation of System Management Memory
- Programmable CAS# ,RAS#, RAMW# and MA Driving Current
- Fully Configurable for the Characteristic of Shadow RAM (640
KBytes to 1 MBytes)
- Supports FP DRAM 5-3-3-3(-3-3-3-3) Burst Read Cycles
- Supports EDO DRAM 4/5-2-2-2(-2-2-2-2) Burst Read Cycles
- Supports SDRAM 6/7-1-1-1(-2-1-1-1) Burst Read Cycles
- Supports X-1-1-1/X-2-2-2/X-3-3-3 Burst Write Cycles
- Supports 8 Qword Deep Buffer for Read/Write Reordering, Dword
Merging and 3/2-1-1-1 Post write Cycles
- Two Programmable Non-Cacheable Regions
- Option to Disable Local Memory in Non-Cacheable Regions
- Shadow RAM in Increments of 16 KBytes
o Integrated PMU Controller
- Supports SMM Mode of CPU
- Supports CPU Stop Clock
- Supports Break Switch
- Supports Modem Ring Wakeup
- Supports Automatic Power Supply Control
o Provides High Performance PCI Arbiter.
- Supports 3 internal masters and 5 external PCI Masters
- Supports Rotating Priority Mechanism
- Hidden Arbitration Scheme Minimizes Arbitration Overhead.
- Supports Concurrency between CPU to Memory and PCI to PCI.
o Integrated Host-to-PCI Bridge
- Supports Asynchronous/Synchronous PCI Clock
- Translates the CPU Cycles into the PCI Bus Cycles
- Provides CPU-to-PCI Read Assembly and Write Disassembly
Mechanism
- Translates Sequential CPU-to-PCI Memory Write Cycles into PCI
Burst Cycles
- Zero Wait State Burst Cycles
- Supports 8 DW Deep Buffer for CPU-to-PCI Posted Write Cycles
- Supports Pipelined Process in CPU-to-PCI Access
- Supports Advance Snooping for PCI Master Bursting
- Maximum PCI Burst Transfer from 256 Bytes to 4 Kbytes
- Fast back-to-back
o Integrated Posted Write Buffers and Read Prefetch Buffers to
Increase System Performance
- CPU-to-Memory Posted Write Buffer (CTMFF) with 8 QW Deep, Always
Sustains 0 Wait Performance on CPU-to-Memory.
- CPU-to-PCI Posted Write Buffer(CTPFF) with 8 DW Deep
- PCI-to-Memory Posted Write Buffer(PTHFF) with 8 QW Deep, Always
Streams 0 Wait Performance on PCI-to/from-Memory Access
- PCI-to-Memory Read Prefetch Buffer(CTPFF) with 8 QW Deep
o Built-in one 32-bit General Purpose Register
o Integrated PCI-to-ISA Bridge
- Translates PCI Bus Cycles into ISA Bus Cycles
- Translates ISA Master or DMA Cycles into PCI Bus Cycles
- Provides a Dword Post Buffer for PCI to ISA Memory cycles
- Two 32 bit Prefetch/Post Buffers Enhance the DMA and ISA Master
Performance
- Fully Compliant to PCI 2.1
o Enhanced DMA Functions
- 8-, 16- bit DMA Data Transfer
- ISA compatible, and Fast Type F DMA Cycles
- Two 8237A Compatible DMA Controllers with Seven Independent
Programmable Channels
- Provides the Readability of the two 8237 Associated Registers
o Built-in Two 8259A Interrupt Controllers
- 14 Independently Programmable Channels for Level- or Edge-
triggered Interrupts
- Provides the Readability of the two 8259A Associated Registers
o Three Programmable 16-bit Counters compatible with 8254
- System Timer Interrupt
- Generates Refresh Request
- Speaker Tone Output
- Provides the Readability of the 8254 Associated Registers
o Built-in Keyboard Controller
- Hardwired Logic Provides Instant Response
- Supports PS/2 Mouse
- Support Hot Key "Sleep" Function
o Built-in Real Time Clock(RTC) with 256B CMOS SRAM
o Fast PCI IDE Master/Slave Controller
- Fully Compatible with PCI Local Bus Specification V2.1
- Supports PCI Bus Mastering
- Plug and Play Compatible
- Supports Scatter and Gather
- Supports Dual Mode Operation - Native Mode and
Compatibility Mode
- Supports IDE PIO Timing Mode 0, 1, 2 of ANSI ATA Specification
- Supports Mode 3 and Mode 4 Timing Proposal on Enhanced IDE
Specification
- Supports Multiword DMA Mode 0, 1, 2
- Separate IDE Bus
- Two 8x32-bit FIFO for PCI Burst Read/Write Transfers.
o Universal Serial Bus Controller
- Host/Hub Controller
- Two USB ports
o On-Board Plug and Play Support
- One Steerable DMA Channel
- One Steerable Interrupt
- One Programmable Chip Select
o Supports the Reroutibility of the four PCI Interrupts
o Supports Flash ROM
o 480-Pin BGA Package
o 0.5 μm CMOS Technology
**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...
**5597/5598 (Jedi) Pentium PCI/ISA Chipset <04/15/97...
**530/5595 (Sinbad) Host, PCI, 3D Graphics & Mem. Ctrl.<11/10/98...
**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] ?...
**5595 Pentium PCI System I/O <12/24/97...
**950 LPC I/O <07/16/99...
**Other:...
**PII/III/Pro
***Notes (Unverified Information!):...
***5600 c:Nov98...
***600 ?...
***620 c:Apr99...
***621 ?...
***630/630E/S c:Feb00...
***630ST/ET ?...
***633/633T c:Mar01...
***635/635T c:Mar01...
***640T c:Mar01 ...
**Athlon etc...
*Symphony...
*TI (Texas Instruments)...
*UMC...
*Unresearched:...
*VIA...
*VLSI...
*Western Digital...
*Winbond...
*ZyMOS...
*General Sources:...
(c) Copyright mR_Slugs Warehouse - All rights Reserved