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**82495XP/490XP Cache Controller / Cache RAM (for i860) 06/05/91
***Notes:...
***Info:...
***Features:...
**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...
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*HMC (Hulon Microelectronics)...
*Logicstar...
**SL6012 Memory Mapper for PC-AT (74LS612 compatible) <Jul87
***Info:
The SL6012 Memory Mapper is intended for use in PC-AT design. It can
expand an address bus by 4 bits. In PC-AT applications, 4 bits of the
source address are used to select 1 of 16, eight bit map
registers. These registers are normally programmed (through software)
with the starting address of each memory page. The register data is
output directly for use as the most significant bits of the expanded
address bus. The 8 bits from the SL6012 are used along with the unused
source address bits to form the expanded address bus.
As shown in Table 1 [see datasheet], the SL6012 has three modes of
operation; read, write and map. Data may be written into, or read from
the Memory Mapper when chip select CSN is low. The register select
inputs (RS0 through RS3) select one of the sixteen map registers. When
RWN is low, data is written into a register from the data bus. When
RWN is high data is output from a Memory Mapper register to the data
bus.
The map mode of operation is selected when chip select CSN is high. In
this mode, the register data selected by the map address inputs (MA0
through MA3) will be available on the map outputs (MO0 through
MO7). Note that the map registers are addressed by either the RS
inputs or the MA inputs depending upon the operating mode. When MEN
(Map Enable) is low the map outputs (MO0-MO7) are active. When MEN is
high, the map outputs are at high impedance.
***Versions:...
***Features:...
**SL9010 System Controller (80286/80386SX/DX, 16/20/25MHz) <oct88...
**SL9020 Data Controller <oct88...
**SL9025 Address Controller <oct88...
**SL9090 Universal PC/AT Clock Chip <oct88...
**SL9250 Page Mode Memory Controller (16/20MHz 8MB Max) <oct88...
**SL9350 Page Mode Memory Controller (16/20/25MHz 16MB Max) <oct88...
**Other:...
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*Unresearched:...
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*Western Digital...
*Winbond...
**W83877TF/TG/TD WINBOND I/O (Multi I/O) c97
***Info:
GENERAL DESCRIPTION
W83877TF/TG is an enhanced version from Winbond's most popular I/O
chip W83877F --- which integrates the disk drive adapter, serial port
(UART), IrDA 1.0 SIR, parallel port, configurable Plug-and-Play
registers for the whole chip --- plus additional powerful features:
ACPI / legacy power management, serial IRQ, and IRQ sharing.
The disk drive adapter functions of W83877TF/TG include a floppy disk
controller compatible with the industry standard 82077/765, data
separator, write pre-compensation circuit, decode logic, data rate
selection, clock generator, drive interface control logic, interrupt
and DMA logic. The wide range of functions integrated into W83877TF/TG
greatly reduces the number of components required for interfacing with
floppy disk drives. W83877TF/TG supports four 360K, 720K, 1.2M, 1.44M,
or 2.88M disk drives and data transfer rates of 250 Kb/S, 300 Kb/S,
500 Kb/S,1 Mb/S, and 2 Mb/S.
W83877TF/TG provides two high-speed serial communication ports
(UARTs), one of which supports serial Infrared communication. Each
UART includes a 16-byte send/receive FIFO, a programmable baud rate
generator, complete modem control capability, and a processor
interrupt system. One of the UARTs support infrared (IR) IrDA1.0. Both
UARTs provide legacy speed with baud rate up to 115.2K and provide
advanced speed with baud rate up to 230k, 460k, and 921k bps which
support higher speed Modems.
W83877TF/TG supports one PC-compatible printer port (SPP),
Bi-directional printer port (BPP) and also Enhanced Parallel Port
(EPP) and Extended Capabilities Port (ECP). Through the printer port
interface pins, also available are: Extension FDD Mode and Extension
2FDD Mode allowing one or two external floppy disk drives to be
connected. This function is especially valuable for notebook computer
applications.
Winbond W83877TF/TG provides functions that comply with ACPI (Advanced
Configuration and Power Interface), which includes support of legacy
and ACPI power management through SMI or SCI function pins. One
24-bits power management timer is implemented with the carry notify
interrupt. W83877TF/TG also has auto power management mode to reduce
the power consumption.
The serial IRQ for PCI architecture is supported, ISA IRQs
(IRQ1~IRQ15) can be cascaded into one IRQSER pin. W83877TF/TG also
features ISA bus IRQ sharing and allows two or more devices to share
the same IRQ pin.
W83877TF/TG is made to fully comply with Microsoft PC97 Hardware
Design Guide. IRQs, DMAs, and I/O space resources are flexible to
adjust to meet ISA PnP requirement. Moreover W83877TF/TG is made to
meet the specification of PC97's requirement in the power management:
ACPI and DPM (Device Power Management).
The configuration registers support mode selection, function
enable/disable, and power down function selection. Furthermore, the
configurable PnP registers are compatible with the Plug-and-Play
feature demand of Windows 95 , which makes system resource allocation
more efficient than ever.
Another benefit of W83877TF/TG is that it is pin-to-pin compatible to
W83877F, and all of the 100-pin Winbond I/O IC family. Thus makes the
design of applications very convenient and flexible.
***Versions:...
***Features:...
**W83977F/G/AF/AG WINBOND I/O (Multi I/O) c97...
**W83977TF WINBOND I/O (Multi I/O) c97...
**W83977EF WINBOND I/O (Multi I/O) <98...
**W83977ATF WINBOND I/O (Multi I/O) <98...
**
**Disk Controller:
**W83759/A/F/AF Advanced VL-IDE Disk Controller <96...
**W83769 Local Bus IDE Solution <94...
**
**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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