L2 cache power down and PCI CLKRUN control logic supported
21 general purpose input signals, 24 general purpose output signals, 20 general purpose
input/output signals
16 external expandable general purpose inputs, 16 external expandable general purpose
outputs
LCD control
All registers readable/restorable for proper resume from Suspend state
Built-in PCI IDE controller
Supports Ultra 33 Synchronous DMA Mode transfers up to Mode 2 Timing (33 MB/sec)
Supports PIO Modes up to Mode 5 timings, and Multiword DMA Mode 0, 1 ,2 with
independent timing of up to 4 drives
Integrated 10 x 32-bit read ahead & posted write buffers for each channel (total: 20
Dwords)
Dedicated pins of ATA interface for each channel
Supports tri-state IDE signals for swap bay
USB interface
One root hub with two USB ports based on OpenHCI 1.0a specification
Supports FS (12Mbits/sec) and LS (1.5Mbits/sec) serial transfer
Supports Legacy keyboard and mouse software with USB-based keyboard and mouse
SMBus interface
System Management Bus interface which meets the v1.0 specification
External APIC interface supported
328-pin (27mm x 27mm) BGA package
2-38
Service Guide