Module Architecture; Figure 6-1. Core Logic Module Block Diagram - AMD Geode SC1200 Data Book

32579B
Integrated Audio
• AC97 Version 2.0 compliant interface to audio codecs
• Secondary codec support
• AMC97 codec support
Video Processor Interface
• 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
Low Pin Count (LPC) Interface
• Based on Intel LPC Interface Specification Revision 1.0
• Serial IRQ support
UDMA33
IDE
PW
GPIOs
ACPI/PM
GPIOs
142
33-66 MHz
Fast X-Bus
PCI Interface
Config.
Reg.
X-Bus
LPC
ISA/PIC/PIT/DMA
LPC Sub-ISA

Figure 6-1. Core Logic Module Block Diagram

6.2

Module Architecture

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
Fast-PCI
33 MHz
Audio
Controller
Legacy
AMD Geode™ SC1200/SC1201 Processor Data Book
Core Logic Module
PCI
USB
USB
AC97