The Chipset Guide

SiS 5597/98 Chipset - 66/75 MHz Front Side Bus

SiS provides the best Pentium processor Chip Set solution with an integrated high-performance DRAM-based Graphics/Video Accelerator by dint of highest integration design technology for the upcoming 97 newest PC specification.

With the VGA controller, Keyboard controller, USB controller, RTC embedded in one chip, SiS product enables the cost-effective design for variety Pentium processor level platforms. The speed of 75 MHz host bus and memory bus enhanced the system performance and the Advanced Configuration and Power Interface (ACPI) feature lowered down the power dissipation at the s ame time. SiS chip also supports Ultra DMA transfer protocol to improve IDE performance, and supports Common Architecture (Serial IRQ and Distributed DMA functions) for moving ISA function to PCI to improve the peripheral devices performance.

SiS supplies two parts of Pentium BGA single chip, SiS5597 and SiS5598, to adapt to the different form factors (NLX, LPX, ATX and AT). These two parts are based on same logic design and only differ in pin mirroring mutually to facilitate the board layout.

• Support Host bus and memory bus up to 75 MHz
• Integrated DRAM Controller for supporting FPM/EDO/SDRAM DRAM
• Integrated L2 cache Controller
• Integrated Host-to-PCI and PCI-to-ISA bridge
• Integrated Fast PCI IDE Master/Slave Controller
• Integrated Legacy PMU and ACPI Controller
• Integrated Posted Write and Prefetch Read FIFOs to increase performance
• Integrated Universal Serial Bus Controller
• Support I2C Bus for SDRAM and clock generator
• Integrated ISA Controller
• Integrated Keyboard Controller
• Integrated Real Time Clock (RTC)
• Integrated Best of class 2D performance Graphics/Video Accelerator
• Highly integration Single Chip Set
• 480 Balls BGA Package
• 0.35 m 3.3V high Technology