SC1100 Datasheet, PDF (1/348 Pages) National Semiconductor (TI) – Geode™ Information Appliance On a Chip

March 2003
Revision 1.1
Geode™ SC1100
Information Appliance On a Chip
General Description
The Geode™ SC1100 device is a member of the National
Semiconductor^® Information Appliance On a Chip (IAOC)
family of fully integrated x86 system chips. The main mod-
ules of the Geode SC1100 are:
• Geode GX1 processor module - Combines advanced
CPU performance with Intel MMX support, a 64-bit
synchronous DRAM (SDRAM) interface, and a PCI bus
controller.
• Core Logic module - Includes PC/AT functionality, a USB
interface, an IDE interface, a PCI bus interface, an LPC
bus interface, Advanced Configuration Power Interface
(ACPI) version 1.0 compliant power management, and
an audio codec interface.
• SuperI/O module - Has a Serial Port (UART), an Infrared
(IR) interface, two ACCESS.bus (ACB) interfaces, and a
Real-Time Clock (RTC).
The block diagram shows the relationships between the
modules.
These features, combined with the device’s small form fac-
tor and low power consumption, make it ideal as the core
for an advanced set-top box, consumer access device, res-
idential gateway, thin client, or embedded system.
Block Diagram
IDE I/F
USB
PCI/Sub-ISA
Bus I/F
GPIO
Audio Codec I/F
LPC I/F
Fast X-Bus
Core Logic
Bridge
PIT
PIC
DMAC
Pwr Mgmnt
Configuration
X-Bus
ISA Bus I/F
Geode™ GX1
Memory Controller
CPU
Core
PCI Bus
Controller
Config.
Block
Fast-PCI Bus
Clock & Reset Logic
RTC
SuperI/O
ISA Bus
I/F
ACB1
I/F
ACB2
I/F
UART
IR
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