SIS5595

SiS5595 PCI System I/O Chipset Pentium PCI System I/O Chipset SiS5595 Preliminary Rev. 2.0 Nov. 02, 1998 This specification is subject to change without notice. Silicon Integrated Systems Corporation assumes no responsibility for any errors contained herein. Copyright by Silicon Integrated Systems Corp., all rights reserved. SiS5595 PCI System I/O Chipset Contents 1 FEATURES ....................................................................................................... 1 1.1 1.2 2 2.1 2.2 3 3.1 3.1.1 3.1.2 3.1.3 3.1.4 3.2 3.2.1 3.2.2 3.3 3.3.1 3.3.2 3.4 3.5 3.5.1 3.5.2 3.5.3 3.5.4 3.5.5 3.5.6 3.6 3.6.1 3.7 3.7.1 3.7.2 3.7.3 3.8 3.8.1 3.8.2 3.8.3 3.8.4 3.8.5 SiS5595 PCI SYSTEM I/O.................................................................... 1 FUNCTIONAL BLOCK DIAGRAM ........................................................ 4 SiS5595 PIN ASSIGNMENT (TOP VIEW) ............................................ 6 SiS5595 CHIP ALPHABETICAL PIN LIST ............................................ 7 PCI BUS INTERFACE .......................................................................... 9 PCI TO ISA BUS BRIDGE ............................................................ 9 DISTRIBUTED DMA (DDMA)...................................................... 11 PC/PCI DMA ............................................................................... 12 SERIAL IRQ (SIRQ).................................................................... 12 ACPI /LEGACY PMU .......................