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*Intel...
**82335 High-Integration Interface Device For 386SX c:Nov88
***Notes:...
***Info:
The Intel 82335 is a high integration interface device used together
with the 82230/82231 to provide the most cost-effective and highest
performance system design solution for AT-compatible 386SX micro-
processor based systems.
The 82335 DRAM control feature is designed and optimized for the 16
MHz 386SX microprocessor bus architecture. The page mode, interleaved
memory design allows 0 wait state performance on most memory accesses
with 100 ns DRAM.
Several address mapping options are available to provide flexibility
in the system memory size and configuration.
The 82335 also provides the necessary interface signals to allow the
387SX numerics coprocessor to run in a PC/AT system. The 82235 with
its integrated parity generation and checking· provides system
designers with data integrity and reliability.
The 82335 is a high integration VLSI companion chip for the Intel
386SX 32-bit microprocessor. It interfaces the 386SX microprocessor to
the 80387SX numeric coprocessor and to the 82230/82231 highly
integrated peripherals in an AT compatible system by converting 386SX
processor bus cycles to 80286 compatible cycles, generating necessary
clock signals, and providing local dynamic memory control. Figure 2.1
[see datasheet] shows a block diagram of this system.
The 82335 is composed of seven functional blocks:
1. DRAM Controller
2. Address Mapper/Decoder
3. Ready Generator
4. Bus Cycle Translator
5. Math Coprocessor Interface
6. Clock Generator/Reset Synchronizer
7. Parity Generator/Checker
***Versions:...
***Features:...
**82360SL I/O Subsystem 10/05/90...
**82370 Integrated System Peripheral (for 82376) c:Oct88...
**82371FB/SB PCI ISA IDE Xcelerator 82371FB/82371SB (PIIX/3) 01/31/95...
**82371MX Mobile PCI I/O IDE Xcelerator (MPIIX) 11/01/95...
**82371AB PCI-TO-ISA / IDE Xcelerator 82371AB (PIIX4) 02/17/97...
**82374/82375 PCI-EISA Bridge (82374EB/82375EB, 374SB/375SB) c:Mar93...
**82378 System I/O (SIO) (82378IB and 82378ZB) c:Mar93...
**82379AB System I/O-APIC (SIO.A) <Dec94...
**82380 32-bit DMA Controller w/ Integrated Peripherals 02/01/87...
**82380FB/AB PCIset: 82380FB Mobile PCI-to-PCI Bridge(MPCI2) 02/17/97...
**82384 Clock Generator and Reset Interface c86...
**82385 32-bit Cache Controller for 80386 09/29/87...
**82385SX 32-bit Cache Controller for 80386SX 01/25/89...
**82395DX High Performance Smart Cache 06/18/90...
**82395SX Smart Cache 12/17/90...
**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:
***440FX (Natoma) 05/06/96...
***440LX (Balboa) 08/27/97...
***440BX (Seattle) c:Apr'98...
***440DX (?) c:?...
***440EX (?) c:Apr'98...
***440GX (Marlinespike) 06/29/98...
***440ZX & 440ZX-66 (?) 01/04/99...
***440ZX-M (?) 05/17/99...
***440MX (Banister) 05/17/99...
**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...
*HMC (Hulon Microelectronics)...
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*OPTi...
*PC CHIPS/Amptron/Atrend/ECS/Elpina/etc...
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*Symphony...
*TI (Texas Instruments)...
*UMC...
**UM82C088 PC/XT Integration Chip <91
***Info:...
***Configurations:...
***Features:
o Fully IBM-PC/XT compatible
o 82C84 Clock generator with 2 clock-inputs to generate the CPU
clock. These are 14.318 MHz and 30 MHz which will support 4.77 MHz
and 10 MHz CPU clocks with 1/3 duty cycle.
o 82C88 Bus Controller
o 82C37 4 channel DMA controller, channel is used for DRAM refresh
o 82C59 8 channel interrupt controller, level is used for system
time base, and level 1 for keyboard input
o 82C53 3 channel timer, channel is used for system time base,
channel 1 for DRAM refresh, and channel 2 for speaker audio
o 82C55 Peripheral l/O r used for keyboard interface and system
configuration switch (same as the PC/XT)
o 74322 Keyboard interface, supports PC/XT type keyboard
o 74280 Parity check and generator
o 74670 4 bit page register for DMA
o Wait state logic
o NMI control logic
o ROM decoder for one 2764 and one 27256
o RAM decoder for 4164 or 41256 DRAM
o H/W and S/W CPU speed change and indicator
o Built-in delay line for RAS, CAS
o Low power consumption: less than 300 mW at 10 MHz CPU speed
o Small PCB size: 100 pin plastic Flat package
**UM82C230 286AT MORTAR Chip Set <91...
**UM82C210 386SX/286 AT Chip Set <91...
**UM82C3xx Twinstar & UM82C336F/N & UM82C39x [no datasheet] ?...
**UM82C380 386 HEAT PC/AT Chip Set <91...
**UM82C480 386/486 PC Chip Set c91...
**UM82C493/491 ??????????????? [no datasheet] ?...
**UM8498/8496 486 VL Chipset "Super Energy Star Green"[no dsheet]c94...
**UM8881/8886 HB4 PCI Chipset "Super Energy Star Green"[no dsheet]c94...
**UM8890 Pentium chipset [no datasheet] ?...
**
**Support Chips:
**UM82152 Cache Controller (AUStek A38152 clone) <91...
**UM82C852 Multi I/O For XT <91...
**UM82C206 Integrated Peripheral Controller <91...
**UM82c45x Serial/Parallel chips ?...
**Other chips:...
*Unresearched:...
*VIA...
*VLSI...
*Western Digital...
*Winbond...
*ZyMOS...
*General Sources:...
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