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2 System Board - (SiS Chipset) (Part Number: D4051-63001)
SiS Chipset
Feature Summary
Function Features
Cache controller ❒ 8 bits or 7 bits TAG with Direct mapped organization.
❒ Write back mode (only supported by BIOS)
❒ Uses burst and pipelined burst SRAMs.
❒ 64-KByte to 1 MByte cache summary
❒ Read/Write cycle of 3-1-1-1 using burst or pipelined SRAMS at
66 MHz.
Integrated DRAM controller ❒ Supports four banks of SIMMs.
❒ Supports 256K, 512K, 1MB, 2MB, 4MB, 16MB 70ns FP/EDO
DRAM.
❒ Supports 4K refresh DRAM.
❒ Supports 3V or 5V DRAM.
❒ Supports symmetrical and asymmetrical DRAM.
❒ Supports 32 bits/64 bits mixed mode configuration.
❒ Supports concurrent write back.
❒ Supports Read Cycle Power Saving Mode.
❒ Table-free DRAM configuration, auto-detect DRAM size, bank
density, single/double sided DRAM, EDO/FP DRAM for each
bank.
❒ Supports CAS before RAS “Intelligent Refresh”.
❒ Supports Relocation of System Management Memory.
❒ Optional Parity Checking.
❒ Programmable CAS# Driving Current.
❒ Fully configurable for the Characteristic of Shadow RAM (640
KByte to 1 Mbyte).
❒ Supports EDO/FP 5/6-2-2-2/-3-3-3 burst read cycles.
Integrated PCI Bridge ❒ Supports asynchronous PCI clock.
❒ Translates the CPU cycles into the PCI bus cycles.
❒ Provides CPU-to-PCI Read Assembly and Write Disassembly
Mechanism.
❒ Translates sequential CPU-to-PCI Memory Write Cycles into PCI
Burst Cycles.
❒ Zero Wait State Burst Cycles.
❒ Provides a prefetch mechanism dedicated for IDE Read.
❒ Supports Advanced Snooping for PCI Master Bursting.
❒ Maximum PCI burst transfer from 256 bytes to 4 Kbytes.
PCI bus arbiter ❒ Supports PCI bus arbitration for up to four masters.
❒ Supports rotating priority mechanism.
❒ Hidden arbitration scheme minimizes arbitration overhead.
❒ Supports concurrence between CPU to memory and PCI to PCI.