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**82498/493   Cache Controller / Cache RAM (for P54 Pentium)    <Nov94
***Notes:...
***Info:
The 82498 Cache Controller and multiple 82493 Cache SRAMs combine with
the Pentium processor (735/90,  815/100) and future Pentium Processors
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 82498 Cache Controller implements the MESI write-back protocol for
full multiprocessing support.  Dual ported buffers and registers allow
the 82498  to concurrently  handle CPU bus,  memory bus,  and internal
cache operation for maximum performance.

The 82493 is a customized high-performance SRAM that supports 64-, and
128-bit  wide memory  bus widths,  32-,  and 64-byte  line sizes,  and
optional sectoring. The  data path between the CPU  bus and memory bus
is  separated  by  the  82493,  allowing  the  CPU  bus  to  handshake
synchronously,  asynchronously,  or   with  a  strobed  protocol,  and
allowing concurrent CPU bus and memory bus operations.

***Configurations:...
***Features:...
**
**Later chipsets (basic spec):
**440 series:...
**450NX  (?)            06/29/98:...
**?????  (Profusion)    c:99
Chips:         
Memory Access Controller (MAC)  
Data Interface Buffer (DIB)
CPUs:          8x P-III Xeon Oct
DRAM Types:    SDRAM PC100 2-way Interleave dual channel
Max Mem:       32GB
ECC/Parity:    ECC
AGP speed:     N/A
Bus Speed:     100
PCI Clock/Bus: 1/3 PCI-66/64



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**Other chips:
***Video:...
***Disk:

UM8272A/A-4   Floppy Disk Controller 4, 8 MHz Versions
UM82C776      ISA bridge
UM82C865F     Super I/O (May be compatible with SMC37C665GT)
UM82C862      ISA IDE controller
UM82C863F     VLB IDE controller
UM82C871F     VLB IDE controller 1 port
UM83C001      Hard Disk Controller For PC/XT H.D.C
UM83C002      RAM Buffer Controller
UM83C003      Hard Disk Controller Interface For PC/XT MFM H.D.C.
UM83C004      Hard Disk Controller Interface For PC/XT MFM/RLL H.D.C.
UM83C021      Hard Disk Controller For PC/AT H.D.C.
UM83C022      AT HDC Interface For PC/AT H.D.C.
UM8326/B      Floppy Disk Data Separator (FDDS) 4, 8 MHz Versions
UM8329/T/B/BT Floppy Disk Controller
UM8388        Single-Chip Floppy Disk Controller Special Design For IBM PC
UM8397        Single-Chip Floppy Disk Controller Design For IBM PC XT
UM8398        Single-Chip Floppy Disk Controller Special Design For IBM PC
UM8660        Super I/O?
UM8670        Super I/O
UM8672        EIDE controller VLB 2 ports
UM8672F       VLB IDE controller, LBA support
UM8673F       PCI EIDE controller
UM9228-1      Floppy Disk Controller

***Peripheral:...
***Other:...
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