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**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...
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*OPTi...
**82C822 PCIB (VLB-to-PCI bridge) c:94
***Notes:...
***Info:
OPTi's 82C822 VESA local bus to PCI Bridge (PCIB) chip is a high
integration 208-pin PQFP device designed to work with VESA VL bus
compatible core logic chipsets. The 82C822 PCIB provides interface to
the high performance PCI bus and is fully compliant to the PCI Version
2.0 specification. The 82C822 requires no glue logic to implement the
PCI bus interface and hence it allows designers to have a highly
integrated motherboard with both VESA local bus and PCI local bus
support. The PCIB chip offers premium performance and flexibility for
VESA VL-based desktop systems running up to 50MHz. The 82C822 PCIB can
be used with OPTi's 82C802G core logic and 82C602 buffer chipsets to
build a low cost and power efficient 486-based desktop solution. It
also works with OPTi 82C546/547 chipset to build a high performance
PCI/VL solution based on the Intel P54C processor.
The 82C822 PCIB provides all of the control, address and data paths to
access the PCI bus from the VESA Local bus (VL bus). The 82C822
provides a complete solution including data buffering, latching,
steering, arbitration, DMA and master functions between the 32-bit VL
bus and the 32-bit PCI bus.
The PCIB works seamlessly with the motherboard chipset bus arbiter to
handle all requests of the host CPU and PCI bus masters, DMA masters,
I/O relocation and refresh. Extensive register and timer support are
designed into the 82C822 to implement the PCI specification.
The 82C822 is a true VESA to PCI bridge. It has the highest priority
on CPU accesses after cache and system memory. It generates LDEV#
automatically and then compares the addresses with its internal
registers to determine whether the current cycle is a PCI cycle. When
a cycle is identified as PCI cycle, the 82C822 will take over the
cycle and then return RDY# to the CPU. If not, the 82C822 will give up
the cycle to the local device or, in the case of an ISA slave,
generate a BOFF# cycle to the CPU. This action will abort the cycle
and allow the CPU to rerun the cycle.
The 82C822 includes registers to determine shadow memory space, hole
locations and sizes to allow the 82C822 to determine which memory
space should be local and which is located on the ISA bus. Upon access
to memory, the 82C822 can determine whether or not the cycle is a PCI
access by comparing the cycle with its internal registers.
***Versions:...
***Features:...
**Other:...
*PC CHIPS/Amptron/Atrend/ECS/Elpina/etc...
**Later Chipsets:
Info sourced from the very useful plasma-online.de:
http://www.plasma-online.de/index.html?content=http%3A//www.plasma-online.de/english/identify/picture/pcchips.html
Chipset name | OEM of | used on mainboard
---------------+---------------------------+-----------------------------------------
HX Pro | ALi M1521/M1523 |
SX Pro | SiS 530/5595 | M598
AGP Pro PC-100 | VIA VT82C598AT/VT82C596B | M577
TX AGP Pro | SiS 5591/5595/6326 |
TX Two | ALi M1531/M1543 |
TX Pro | ALi M1531/M1543 | M560, M575
TX Pro II | SiS 5597/5598 | M571
TX Pro III | VIA VT82C580VPX/VT82C586B | M573
TX Pro IV | SiS 5591/5592 | M570
Top Gun | ALi Aladdin IV+ | M565
VIA GRA | VIA VT8501/VT82C596B | M858LMR
VX Pro | VIA VT82C580VP/VT82C586B |
VX Pro + | VIA VT82C580VPX/VT82C586B |
VX Pro II | UTron / HiNT UT801X |
VX two | VIA VT82C580VP/VT82C586B | Amptron PM-8600A
VX two | VIA VT82C580VPX/VT82C586B | Amptron PM-8600B
BXToo | VIA Apollo Pro | M760V, M761V
BXToo | VIA VT82C693/VT82C686A | M767V
BXPro | SiS 600/5595 | M747
BXCel | ALi M1621/M1543 | M726, M729
BXpert | VIA VT82C691/VT82C596 |
BXTel | VIA Apollo Pro | M730
Xcel 2000 | SiS 620/5595 | M741LMRT
Super TX | SiS 5597/5598 | ASUS SP97-V, SP98-N, Jetway J-TX98R2
Super TX | ALi M1531/M1543 |
Super TX | ALi M1541/M1543 | Biostar M5ALA, M5ALC, Pionex MBD-P5ABx
Super TX3 | SiS 5571 |
Super TX4 AGP | |
GFXcel | SiS 630 |
GFXpro | ALi M1631/M1535D |
T-Bird | SiS730S | M810
---------------+---------------------------+----------------------------------------
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