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**82497/492 Cache Controller / Cache RAM (for P54 Pentium) <Nov94
***Notes:...
***Info:
The 82497 Cache Controller and multiple 82492 Cache SRAMs combine with
the Pentium processor (735\90, 810\100) to form a CPU Cache chip set
designed for high performance servers and function-rich desktops. The
high-speed interconnect between the CPU and cache components has been
optimized to provide zero-wait state operation. This CPU Cache chip
set is fully compatible with existing software, and has new data
integrity features for mission critical applications.
The 82497 cache controller implements the MESI write-back protocol for
full multiprocessing support. Dual ported buffers and registers allow
the 82497 to concurrently handle CPU bus, memory bus, and internal
cache operation for maximum performance.
The 82492 is a customized high-performance SRAM that supports 32-,
64-, 128-bit wide memory bus widths, 16-, 32-, and 64-byte line sizes,
and optional sectoring. The data path between the CPU bus and memory
bus is separated by the 82492, allowing the CPU bus to handshake
synchronously, asynchronously, or with a strobed protocol, and
allowing concurrent CPU bus and memory bus operations.
***Configurations:
82497 + 8x 82492 (66Mhz, 256K)
82497 + 16x 82492 (66Mhz, 512K)
82497-60 + 8x 82492 (60Mhz, 256K)
82497-60 + 16x 82492 (60Mhz, 512K)
Cache ram is also rated at 60 or 66 MHz.
***Features:...
**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...
**HT11 Single 286 AT Chip [no datasheet] <Aug90
***Notes:...
**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)...
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*Winbond...
**W83757 SUPER I/O CHIP <92
***Info:...
***Versions:...
***Features:...
**W83767F ?? Multi I/O [no datasheet]
**W83777F/87F Power I/O (Multi I/O) <95...
**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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