National Semiconductor SC1100
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 modules 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.GENERAL DESCRIPTION
● 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 factor and low power consumption, make it ideal as the core for an advanced set-top box, consumer access device, residential gateway, thin client, or embedded system. Block Diagram Geode™ GX1 Memory Controller Fast X-Bus IDE I/F Bridge USB PCI/Sub-ISA Bus I/F PCI Bus CPU Core Core Logic PCI Bus Controller Config. Block Fast-PCI Bus PIT Clock & Reset Logic PIC RTC DMAC ACB1 I/F GPIO Pwr Mgmnt SuperI/O ACB2 I/F UART IR Audio Codec I/F Configuration ISA Bus I/F LPC I/F X-Bus ISA Bus I/F National Semiconductor and Virtual System Architecture are registered trademarks of National Semiconductor Corporation.