Preliminary V0.5
Specifications subject to Change without Notice
1. Features
PC98/99, ACPI & LANDesk Compliant
− ISA Plug and Play register set compatible
− ACPI V. 1.0 and LANDesk 3.1 compliant
− Supports eight logical devices
− 16-bit address decoding
− Three selectable DMA channels
− PC98/99 I/O solution
− Supports IRQ sharing
Fan Controller
− Provides FAN ON/OFF and speed control
− Up to 3 programmable Pulse Width Modulation
(PWM) FAN control outputs
− Each PWM output supports 128 steps of PWM
modes
− Up to 3 Fan tachometer inputs
2 Serial Ports
− Supports two standard 16C550 UARTs
− UART2 also supports IrDA 1.0 (SIR) and
ASKIR infrared protocols
− Supports MIDI baud rate
IEEE 1284 Parallel Port
− Standard mode—Bi-directional SPP
− Enhanced mode—EPP V. 1.7 and EPP V. 1.9
compliant
− High speed mode—ECP, IEEE 1284 compliant
− Backdrive current reduction
− Printer power-on damage reduction
Floppy Disk Controller
− Enhanced digital data separator
− Drives A and B can be logically swapped via
registers
− 3-Mode drive supported
− Supports automatic write protection via
software
IT8673F
Advanced Input/Output (Advanced I/O)
ITPM-PN-200211 Joseph, April 8, 2002
− Supports two 360K/720K/1.2M/1.44M/2.88M
floppy disk drives
Keyboard Controller
− 8042 compatible
− 2KB programmable ROM
− 256-byte data RAM
− GateA20 and Keyboard reset output
− Supports keylock function (Thru GPIO)
− Supports PS/2 mouse
− Supports any key, or 2-5 sequential keys, or
1-3 simultaneous keys keyboard power-on
feature
− Supports mouse double-click and/or mouse
move power on event
Consumer Remote Control (TV Remote) IR
8 General Purpose I/O Pins
− Input mode supports either switch de-bounce
− Output mode supports 2 sets of programmable
LED blinking periods
Chasis Open Detection Support
Serial IRQ Support
ITE innovative automatic power-failure
resume & power button De-bounce
Vbat & Vcch Support
Single 24 MHz or 48 MHz Clock Input
Single +5V Power Supply
128-pin QFP
1