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**82485       Turbo Cache (and 485Turbocache)                      c90
***Notes:...
***Info:...
***Versions:
82485 25MHz
82485 33MHz

****485Turbocache module

This is  an 82485 mounted on  a PCB with  either 64 or 128K  cache. It
plugs into a  motherboard that has a special socket  to accept it. The
Hauppauge 4860, Intel 403E, Intel  LP486 and some CPU complexes of the
Intel xPress  Platform are  example motherboards. AFAIK  this standard
was introduced with the 403E.

According  to:  http://www.elhvb.com/mboards/intel/files/help/403E.HLP
There were some  serious issues with the implementation  and design of
this module. See the quoted text below.

*****(Section: General Section Menu>Turbocache Issue> )...
*****(Section: General Section Menu>External Cache Adapters> )...
***Features:...
**82489DX       Advanced Programmable Interrupt Controller    10/12/92...
**82495DX/490DX DX CPU-Cache Chip Set                           <Sep91...
**82495XP/490XP Cache Controller / Cache RAM (for i860)       06/05/91...
**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
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



**800 series...
*Headland/G2...
**HT21          386SX/286 Single Chip (20 MHz)                 c:Aug91
***Info:...
***Configurations:...
***Features:...
**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...
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