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National Semiconductor Electronic Components Datasheet

SC1100 Datasheet

Information Appliance On a Chip

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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
National Semiconductor and Virtual System Architecture are registered trademarks of National Semiconductor Corporation.
Geode and VSA are trademarks of National Semiconductor Corporation.
For a complete listing of National Semiconductor trademarks, please visit www.national.com/trademarks.
© 2003 National Semiconductor Corporation
www.national.com


National Semiconductor Electronic Components Datasheet

SC1100 Datasheet

Information Appliance On a Chip

No Preview Available !

Features
General Features
32-bit x86 processor, up to 300 MHz, with MMX instruc-
tion set support
Memory controller with 64-bit SDRAM interface
PC/AT functionality
PCI bus controller
IDE interface, two channels
USB, three ports, OHCI (OpenHost Controller Interface)
version 1.0 compliant
Audio, AC97/AMC97 version 2.0 compliant
National’s Virtual System Architecture® technology
(VSA™) support
Power management, ACPI (Advanced Configuration
Power Interface) version 1.0 compliant
Package:
— 388-Terminal TEPBGA (Thermally Enhanced Plastic
Ball Grid Array)
GX1 Processor Module
CPU Core:
— 32-bit x86 processor, up to 300 MHz, with MMX
instruction set support
— 16 KB unified L1 cache
— Integrated Floating Point Unit (FPU)
— Re-entrant SMM (System Management Mode)
enhanced for VSA
Memory Controller:
— 64-bit SDRAM interface
— 78 to 100 MHz frequency range
— Direct interface with CPU/cache
— Supports clock suspend and power-down/self-
refresh
— Up to 8 SDRAM devices or one DIMM/SODIMM
Core Logic Module
Audio Codec Interface:
— AC97/AMC97 (Rev. 2.0) codec interface
— Legacy audio emulation using XpressAUDIO
— Six DMA channels
PC/AT Functionality:
— Programmable Interrupt Controller (PIC), 8259A-
equivalent
— Programmable Interval Timer (PIT), 8254-equivalent
— DMA Controller (DMAC), 8237-equivalent
Power Management:
— ACPI 1.0 compliant
— Sx state control of three power planes
— Cx/Sx state control of clocks and PLLs
— Thermal event input
— Wakeup event support:
– Three general-purpose events
– UART RI# signal
– Infrared (IR) event
General Purpose I/Os (GPIOs):
— Six (6) dedicated GPIO signals
— 24 multiplexed GPIO signals
Low Pin Count (LPC) Bus Interface:
— Specification version 1.0 compatible
PCI Bus Interface:
— PCI version 2.1 compliant with wakeup capability
— 32-bit data path, up to 33 MHz
— Glueless interface for an external PCI device
— Supports four PCI bus master devices
— Supports four PCI interrupts
— Rotating priority
— 3.3V signal support only
Sub-ISA Bus Interface:
— Supports up to four chip selects for external memory
devices
– Up to 16 MB addressing
– Supports a chip select for ROM or Flash EPROM
boot device, up to 16 MB
– A chip select for one of:
– M-Systems’ DiskOnChip DOC2000 Flash file
system
– NAND EEPROM
— Supports up to two chip selects for external I/O
devices
– 8-bit (optional 16-bit) data bus width
– Cycle multiplexed with PCI signals
– Is not the subtractive decode agent
IDE Interface:
— Two IDE channels for up to four external IDE devices
— Supports ATA-33 synchronous DMA mode transfers,
up to 33 MB/s
Universal Serial Bus (USB):
— USB OpenHCI 1.0 compliant
— Three ports
www.national.com
2
Revision 1.1


Part Number SC1100
Description Information Appliance On a Chip
Maker National Semiconductor
PDF Download

SC1100 Datasheet PDF






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