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**82496/491 Cache Controller / Cache RAM (for P5 Pentium) 03/22/93
***Notes:...
***Info:...
***Configurations:...
***Features:...
**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...
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*OPTi...
*PC CHIPS/Amptron/Atrend/ECS/Elpina/etc...
*SIS...
*Symphony...
*TI (Texas Instruments)...
*UMC...
*Unresearched:...
*VIA...
*VLSI...
**VL82C108 TOPCAT Combination I/O chip ?
***Info:
The VL82C108 Combo chip replaces with a single 100-pin chip, several
of the commonly used peripherals found in PC/AT-compatible
computers. This chip, when used with VLSI PC/AT-compatible chip set,
allows designers to implement a very cost-effective minimum chip count
motherboard containing functions that are common to virtually all PCs.
The on-chip UART is completely software compatible with the VL16C450
ACE.
The bidirectional parallel port provides a PS/2 software compatible
interface between a Centronics-type printer and the VL82C108. Direct
drive is provided so that all that is needed to interface to the line
printer is a resistor/ capacitor network. the bidirectional feature
(option) is software programmable for backwards PC/AT-compatibility.
The keyboard/mouse controller is selectable as PC/AT- or PS/2-
compatible.
Included is the control logic necessary for the support of the
Integrated Drive Electronics (IDE) hard disk bus interface. Hard disk
drives which support the IDE interface often refer to the interface as
"AT Bus" compatible or "Embedded AT Bus" compatible.
The Combo I/O chip also includes selectable chip selects for the
internal UART and printer port, and four fixed chip selected for
external floppy and hard disk controllers.
***Versions:...
***Features:...
**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...
*Winbond...
*ZyMOS...
*General Sources:...
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