SC3200 datasheet(105/447 Pages) AMD

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AMD Geode™ SC3200 Processor Data Book

105

SuperI/O Module

Revision 5.1

5.0SuperI/O Module

The SuperI/O (SIO) module is a PC98 and ACPI compliant

SIO that offers a single-cell solution to the most commonly

used ISA peripherals.

The SIO module incorporates: two Serial Ports, an Infrared

Communication Port that supports FIR, MIR, HP-SIR,

Sharp-IR, and Consumer Electronics-IR, a full IEEE 1284

Parallel Port, two ACCESS.bus Interface (ACB) ports, Sys-

tem Wakeup Control (SWC), and a Real-Time Clock (RTC)

that provides RTC timekeeping.

Outstanding Features

• Full compatibility with ACPI Revision 1.0 requirements.

• System Wakeup Control powered by VSB, generates

power-up request and a PME (power management

event) in response to SDATA_IN2 (an audio codec),

IRRX1 (a pre-programmed CEIR), or a RI2# (serial port

ring indicate) event.

• Advanced RTC, Y2K compliant.

Figure 5-1. SIO Block Diagram

Wakeup

Events

Host Interface

ISA

Interface

AB2D

PWUREQ

IR Comunication

Infrared/Serial

Interface

Serial Port 2

Serial

Interface

VSB

VBAT

Port/Serial Port 3

Serial

Interface

System Wakeup

Control

Real-Time Clock

AB2C

ACCESS.bus 2

AB1D

AB1C

ACCESS.bus 1

IEEE 1284

Parallel Port

Interface

Serial Port 1

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