AMD SC2200 User Manual

32580B

• AC97 Version 2.0 compliant interface to audio codecs

• Secondary codec support

• AMC97 codec support

• Synchronous serial interface to the Video Processor

• Translates video and clock control register accesses 

from PCI to serial interface

• Supports both reads and writes of Video Processor 

registers

• Retries Fast-PCI bus accesses until Core Logic 

completes the transfer over the serial interface

• Based on Intel LPC Interface Specification Revision 1.0

• Serial IRQ support

The Core Logic architecture provides the internal functional
blocks shown in Figure 6-1.

• Fast-PCI interface to external PCI bus

• IDE controllers (UDMA-33)

• USB controllers

• Sub-ISA bus interface

• AT compatibility logic (legacy)

• ACPI compliant power management (includes GPIO 

interfaces, such as joystick)

• Integrated audio controller

• Low Pin Count (LPC) Interface

ACPI/PM

UDMA33

USB

LPC

Sub-ISA

Fast X-Bus

Fast-PCI

X-Bus

AC97

PCI

ISA/PIC/PIT/DMA

33-66 MHz

33 MHz

GPIOs