5.0Superi/O Module; Figure 5-1. Sio Block Diagram - AMD Geode SC3200 Data Book

SuperI/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.
Serial
Interface
Serial Port 1
System Wakeup
Control
Wakeup PWUREQ
Events
AMD Geode™ SC3200 Processor Data Book
Serial
Infrared /Serial
Interface
IR Comunication
Serial Port 2
Port/Serial Port 3
ACCESS.bus 1
AB1C AB1D

Figure 5-1. SIO Block Diagram

5.0SuperI/O Module

Outstanding Features
• Full compatibility with ACPI Revision 1.0 requirements.
• System Wakeup Control powered by V
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.
V
Interface
BAT
Real-Time Clock
ACCESS.bus 2
AB2C AB2D
32581C
5
, generates
SB
ISA
V
Interface
SB
Host Interface
IEEE 1284
Parallel Port
Parallel Port
Interface
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