SC2200 datasheet(10/433 Pages) NSC

10 / 433 page

www.national.com

Revision 3.0

1.0

Architecture Overview

As illustrated in Figure 1-1, the SC2200 contains the follow-

ing modules in one integrated device:

• GX1 Module:

— Combines advanced CPU performance with MMX

support, fully accelerated 2D graphics, a 64-bit

synchronous DRAM (SDRAM) interface and a PCI

bus controller. Integrates GX1 silicon revision 8.1.1.

• Video Processor Module:

— A low-power CRT and TFT support module with a

video input port, and a hardware video accelerator

for scaling, filtering and color space conversion.

• Core Logic Module:

— Includes PC/AT functionality, an IDE interface, a

Universal Serial Bus (USB) interface, ACPI 1.0

compliant power management, and an audio codec

interface.

• SuperI/O Module:

— Includes two Serial Ports, an Infrared (IR) Port, a

Parallel Port, two ACCESS.bus interfaces, and a

Real-Time Clock (RTC).

Figure 1-1. SC2200 Block Diagram

CPU

GX1

Memory Controller

Core

Display

Controller

2D Graphics

Accelerator

PCI Bus

Controller

Video

Scaling

Video Processor

CRT I/F

TFT I/F

Video

Mixer

Clock & Reset Logic

Config.

Fast-PCI Bus

Video Input Port (VIP)

IDE I/F

Fast X-Bus

PIT

DMAC

Pwr Mgmnt

Configuration

ISA Bus I/F

PIC

USB

GPIO

PCI/Sub-ISA

Audio Codec I/F

LPC I/F

ISA Bus

Block

Bus I/F

I/F

Parallel

Port

ACB1

I/F

ACB2

I/F

UART1

UART2

UART3

&IR

Bridge

RTC

Core Logic

SuperI/O

Host Interface

X-Bus

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