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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...
*Headland/G2...
**Notes:
InfoWorld Apr 10, 1989 p42 - Video Severn and G-2 Will Merge to form
Headland Technology.
...affiliate of LSI logic.
According to:
http://www.vgamuseum.info/index.php/news/itemlist/category/15-headland-technology
Graphics chips were renamed from GC*** to HT***. In this document any
part no. that differs only by GC/HT have been assumed to be a renamed
part.
**GC101/102 12/16MHz PC/AT Compatible Chip Set c:Feb88...
**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...
**Support Chips:
**HT44 Secondary Cache c:Jun92...
**Other:...
*HMC (Hulon Microelectronics)...
*Logicstar...
*Motorola...
*OPTi...
*PC CHIPS/Amptron/Atrend/ECS/Elpina/etc...
*SIS...
*Symphony...
*TI (Texas Instruments)...
*UMC...
*Unresearched:...
*VIA...
*VLSI...
*Western Digital...
*Winbond...
**W83777F/87F Power I/O (Multi I/O) <95
***Info:
GENERAL DESCRIPTION
The W83777F/W83787F integrates a disk drive adapter, serial port
(UART), parallel port, IDE bus interface, and game port decoder onto a
single I/O chip. The W83777F/W83787F is an enhanced version of the
W83767F Power l/O chip. The enhanced functions include one 2.88MB
floppy disk controller (W83777F only), two 16550 compatible UARTs, and
one parallel port with EPP mode, ECP mode, and joystick mode.
The disk drive adapter functions of the W83777F/W83787F include a
floppy disk drive 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, and interrupt and DMA logic. The wide range of functions
integrated onto the W83777F/W83787F greatly reduces the number of
components required for interfacing with floppy disk drives. The
W83777F/W83787F supports four 360K, 720K, 1.2M, 1.44M, or 2.88M
(W83777F only) disk drives and data transfer rates of 250KB/S,
300KB/S, 500KB/S, and 1MB/S (W83777F only).
There are two high-speed serial communication ports (UARTs) on the
W83777F/W83787F. The UARTs include 16-byte send/receive FIFOs, a
programmable baud rate generator, complete modem control capability,
and a processor interrupt system.
The W83777F/W83787F supports three optional PC-compatible printer
ports: 378b, 278h and BBCh. Additional bi-directional l/O capability
is available by hardware control or software programming. The parallel
port also supports the Enhanced Parallel Port (EPP) and Extended
Capabilities Port (ECP). The W83777F/W83787F supports two embedded
hard disk drive (AT bus) interfaces and a game port with decoded
read/write output.
The W83777F/W83787F's Extension FDD Mode and Extension 2FDD Mode allow
one or two external floppy disk drives to be connected to the computer
through the printer interface pins in notebook computer applications.
The Extension Adapter Mode of the W83777F/W83787F allows pocket
devices to be installed through the printer interface pins in notebook
computer applications according to a protocol set by Winbond, but with
upgraded performance.
The JOYSTICK mode allows a joystick to be connected to a parallel port
with a signal switching cable.
The configuration register supports address selection, mode selection,
function enable/disable, and power down function selection.
***Versions:...
***Features:...
**W83877F WINBOND I/O (Multi I/O) <96...
**W83877TF/TG/TD WINBOND I/O (Multi I/O) c97...
**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...
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