AMD SC2200 Computer Hardware User Manual


 
AMD Geode™ SC2200 Processor Data Book 15
Overview
32580B
General Purpose I/Os (GPIOs):
27 multiplexed GPIO signals
Low Pin Count (LPC) Bus Interface:
Specification v1.0 compatible
PCI Bus Interface:
PCI v2.1 compliant with wakeup capability
32-Bit data path, up to 33 MHz
Glueless interface for an external PCI device
Fixed priority
3.3V signal support only
Sub-ISA Bus Interface:
Up to 16 MB addressing
Supports a chip select for ROM or Flash EPROM
boot device
Supports either:
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
Shares balls with PCI signals
Is not a subtractive 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 v1.0 compliant
Three ports
SuperI/O Module
Real-Time Clock (RTC):
DS1287, MC146818 and PC87911 compatible
Multi-century calendar
ACCESS.bus (ACB) Interface:
Two ACB interface ports
Parallel Port:
EPP 1.9 compliant
IEEE 1284 ECP compliant, including level 2
Serial Port (UART):
UART1, 16550A compatible (SIN, SOUT, BOUT
pins), used for SmartCard interface
UART2, 16550A compatible
Enhanced UART with fast Infrared (IR)
Other Features
High-Resolution Timer:
32-Bit counter with 1 μs count interval
WATCHDOG Timer:
Interfaces to INTR, SMI, Reset
Clocks:
Input (external crystals):
32.768 KHz (internal clock oscillator)
27 MHz (internal clock oscillator)
—Output:
AC97 clock (24.576 MHz)
Memory controller clock (66 MHz to 100 MHz)
PCI clock (33 MHz)
JTAG Testability:
Bypass, Extest, Sample/Preload, IDcode, Clamp, HiZ
Voltages:
Internal logic:
233 MHz @ 1.8V
266 MHz @ 1.8V
300 MHz @ 2.1V
Standby logic:
233 MHz @ 1.8V
266 MHz @ 1.8V
300 MHz @ 2.1V
I/O: 3.3V
Standby I/O: 3.3V
Battery (if used): 3.0V