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**CS82310  PEAK/DM 386 AT           (82C351/82C355/82C356)         c91
***Info:
The CS82310 PEAK/DM CHIPSet is a three chip VLSI implementation of the
systems logic required  to implement a cache-based  386DX system. This
CHIPSet  is  designed to  offer  a  100% PC/AT  compatible  Integrated
solution. The  flexible architecture  of the PEAK/DM  allows it  to be
used in any iAPX386-based system  design such as CAD/CAE workstations,
office  systems, industrial  and financial  transaction systems.   The
CS82310 PEAK/DM CHIPSet provides a  complete cache based 386/AT system
using only  19 components  plus memory  devices.  The  CS82310 PEAK/DM
CHIPSet consists  of one 82C351 CPU/cache/DRAM  controller, one 82C355
data  buffer,  and  one  82C356 peripheral  controller.   The  CHIPSet
supports a local CPU bus, a 32-bit memory bus, and AT buses.

82C351 CPU/Cache/D RAM/Controller
By integrating both the cache  and DRAM control functions in one chip,
the  82C351  supports  simultaneous   activation  of  cache  and  DRAM
accesses; minimizing  the cache miss penalty. It  has hardware support
to allow  the user to  designate up to  four blocks (of  variable size
from 4KB  to 4MB) of main  memory as non-cacheable  address space. The
82C351 cache  controller supports  a direct mapped  cache architecture
and cache sizes  of 32KB, 64KB, 128KB, or  256KB. Memory write updates
are implemented using a  buffered write-through scheme.  The 82C351 is
available in a 160-pin PFP package.

82C355 Data Buffer
The 82C355 bus controller contains  the data buffers used to interface
the local and system  memory buses and a path for the  AT data bus. In
addition  to   having  high  current  bus  drive,   it  also  performs
conversions between the different sized data paths and provides parity
generation  and checking.  The 82C355  is available  in a  120-pin PFP
package.

82C356 Peripheral Controller
The 82C356 peripheral controller  contains the address buffers used to
interface between  the processor address bus (A<23:2>)  and the system
address  bus  (SA<19:0>).   It  also  contains  an  equivalent  82C206
integrated  peripheral  controller  that  incorporates: two  8237  DMA
controllers, two  8259 interrupt controllers,  one 8254 timer/counter,
one  MC146818 real  time clock,  and several  TTL/SSI  interface logic
chips.

***Configurations:...
***Features:...
**CS8281   NEATsx (386SX)           (82C811/812/215/206)       c:Dec89...
**CS8283   LeAPset-sx               (82C841/82C242/82C636)     c:Mar90...
**CS8285   PEAKsx                   (82C836/82C835)                c91...
**CS8288   CHIPSlite-sx             (82C836/82C641/82C835)          c?...
**CS4000   WinCHIPS                 (64200/84021/84025)            c92...
**CS4021   ISA/486                  (84021/84025)                  c92...
**CS4031   CHIPSet                  (84031/84035)              5/10/93...
**CS4041/5 CHIPSet                  (84041/84045)              2/10/95...
**CB8291   ELEAT                    [no datasheet]                 c90...
**CB8295   ELEATsx                  [no datasheet]                 c90...
**82C100   IBM PS/2 Model 30/Super XT                                ?...
**82C110   IBM PS/2 Model 30/Super XT                                ?...
**82C235   Single Chip AT (SCAT)                                   c89...
**82C836   Single Chip 386sx (SCATsx)                              <91...
**F8680/A  PC/CHIP Single-Chip PC                                  c93...
**
**Support Chips:
**64200    (Wingine) High Performance 'Windows Engine'         c:Oct91...
**82C206   Integrated Peripheral Controller                        c86...
**82C601/A Single Chip Peripheral Controller                 <08/30/90...
**82C607   Multifunction Controller                             <Jun88...
**82C710   Universal Peripheral Controller                     c:Aug90...
**82C711   Universal Peripheral Controller II                  c:Jan91...
**82C712   Universal Peripheral Controller II                  c:Jan91...
**82C721   Universal Peripheral Controller III                 c:May93...
**82C735   I/O Peripheral Controller With Printgine            c:Jul93...
**82C835   Single CHIP 386sx AT Cache Controller               c:Apr91...
**F87000   Multi-Mode Peripheral Chip                         11/23/93...
**Other:...
**Disk:...
**Video:...
*Contaq  . . . . . [no datasheets, some info]...
*Efar Microsystems [no datasheets, some info]...
*ETEQ...
*Faraday...
*Forex . . . . . . [List only, no datasheets found]...
*Intel...
**82395SX     Smart Cache                                     12/17/90
***Notes:...
**82396SX     Smart Cache                                     12/17/90...
**82485       Turbo Cache (and 485Turbocache)                      c90...
**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...
**800 series...
*Headland/G2...
*HMC (Hulon Microelectronics)...
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*OPTi...
**82C381/382     HiD/386             (386DX)                      c:89
***Info:
The  HiD/386 Chipset,  82C381  and 82C382D, support  high  integration
implementations of Direct Mapped  Cache with 32KB/64KB/128KB Cache for
25 and  33 MHz  386/AT Personal Computers.  Combined  with  the 82C206
Integrated  Peripherals Controller, it  integrates the  386/AT mother-
board to under 20 devices, plus memory.  It is designed to cost reduce
discrete and CHIPS’CS8230 based 82385 Cache 386/AT designs, as well as
boost the performance of these designs to 33 MHz, with >64KB Cache.

The 82681 provides system control logic and data bus conversion logic.
The  control logic consists  of 386  CPU control  logic, AT  Bus cycle
control, 387 Numeric Processor control logic, synchronous clock divide
logic and control of the local peripheral bus. The data bus conversion
logic consists of various 8, 16, 32 bit conversions for ROM cycles, AT
bus cycles and memory cycles.

The 820382D  performs the Memory  Management functions for  the HiD/AT
chipset. It  is designed to  optimize cost of high  performance 386/AT
systems with 64KB, l28KB or larger Direct Mapped Cache Memory. It also
implements logic to maintain compatibility  in the AT environment . It
provides a Page  Interleave backend for main DRAM memory,  in order to
improve  performance during  miss  cycles. It  also  has features  for
reducing system cost.

It minimizes  Cache Memory cost by  allowing the use of  slow SRAM; by
supporting single EPROM BIOS configurations; putting DRAM on the local
bus and  consequently reducing DRAM  speeds by 15ns typically;  and by
remapping 256K of DRAM between 640K and 1024K to top of main memory.

It provides a very flexible implementation of paging for the main DRAM
memory.   For even  bank configurations,  it provides  2-way  or 4-way
interleaving;  for odd  banks  it provides  paging.   This provides  a
flexible  approach to  increasing  the  size of  the  local memory  as
software demands increase, without imposing a penalty on performance.

Finally, memory performance is  optimized by shadow RAM techniques for
BIOS ROMs; concatenated pages for multiple hank configurations; paging
for odd banks; and variable page size for larger DRAMs.

System Architecture
The  HiD/AT   chipset  is   compatible  with  the   82C206  Integrated
Peripherals  Controller. Consequently,  with the  82C206, a  very high
integration  and very high  performance 386/AT  can be  implemented. A
typical motherboard  can be  designed with less  than 20  devices plus
memory.

For  larger  AT designs,  targeted  at  file-servers and  departmental
computers, designs with 8 or more slots can be supported with external
AT bus drivers.

***Configurations:...
***Features:...
**82C391/392     386WB PC/AT Chipset (386DX)                    <Dec90...
**82C461/462     Notebook PC/AT chipset [no datasheet]               ?...
**82c463         SCNB Single Ship Notebook                        c:92...
**82c465MV/A/B   Single-Chip Mixed Voltage Notebook Solution    <Oct97...
**82C481?/482?   HiP/486 & HiB/486 [no datasheet]                Oct89...
**82C491/392     486WB PC/AT Chipset                         <04/21/91...
**82C493/392     486SXWB                                     <10/21/91...
**82C495SX/392SX LCWB PC/AT chipset [no datasheet]                   ?...
**82C495SLC      DXSLC 386/486 Low Cost Write Back                c:92...
**82C495XLC      PC/AT Chip Set                                   c:93...
**82c496A/B      DXBB PC/AT Chipset                             <Mar92...
**82C496/7       DXBB PC/AT Chipset (Cached)                 <01/16/92...
**82C498         DXWB PC/AT chipset [no datasheet]                   ?...
**82C499         DXSC DX System Controller                        c:93...
**82C546/547     Python PTM3V                                     c:94...
**82C556/7/8     Viper [no datasheet]                                ?...
**82C556/7/8N    Viper-N  Viper Notebook Chipset             <05/25/95...
**82C556M/7M/8E  Viper-N+ Viper Notebook Chipset                  c:96...
**82C566/7/8     Viper-Max Chipset Scalable MultiMedia PC Solution   ?...
**82C571/572     486/Pentium                                      c:93...
**82C576/7/8     Viper Xpress  [no datasheet]                        ?...
**82C576/8/9     Viper XPress+ [no datasheet, some info]     <01/16/97...
**82C596/597     PTMAWB Pentium Adaptive Write-back (Cobra)       c:93...
**82C650/1/2     Discovery (Pentium Pro) [no datasheet]              ?...
**82C681/2/6/7   386/486WB EISA                                   c:92...
**82C683         386/486AWB EISA [no datasheet]                      ?...
**82C693/6/7     Pentium uP Write Back Cache EISA                 c:93...
**82C700         FireStar                                         c:97...
**82C701         FireStar Plus                                    c:97...
**82C750         Vendetta      [no datasheet]                        ?...
**82c801         SCWB2 DX Single Chip Solution                    c:92...
**82C802         SCWB2 PC/AT Single Chip [no datasheet]              ?...
**82C802G/GP     System/Power Management Controller (cached)      c:93...
**82C895         System/Power Management Controller (cached)   c:Sep94...
**82C898         System/Power Management Controller (non-cache)c:Nov94...
**
**Support Chips:
**82C601/2       Buffer Devices                                 <Nov94...
**82C822         PCIB (VLB-to-PCI bridge)                         c:94...
**Other:...
*PC CHIPS/Amptron/Atrend/ECS/Elpina/etc...
*SIS...
*Symphony...
*TI (Texas Instruments)...
*UMC...
*Unresearched:...
*VIA...
*VLSI...
*Western Digital...
*Winbond...
*ZyMOS...
*General Sources:...

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