W83977ATF Просмотр технического описания (PDF) - Winbond

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W83977ATF

WINBOND I/O

Winbond 

W83977ATF

Infrared

• Support IrDA version 1.0 SIR protocol with maximum baud rate up to 115.2K bps

• Support SHARP ASK-IR protocol with maximum baud rate up to 57,600 bps

• Support IrDA version 1.1 MIR (1.152M bps) and FIR (4M bps) protocol

--- Single DMA channel for transmitter or receiver

--- 3rd UART with 32-byte FIFO is supported in both TX/RX transmission

--- 8-byte status FIFO is supported to store received frame status (such as overrun CRC error,

etc.)

• Support auto-config SIR and FIR

Parallel Port

• Compatible with IBM parallel port

• Support PS/2 compatible bi-directional parallel port

• Support Enhanced Parallel Port (EPP) − Compatible with IEEE 1284 specification

• Support Extended Capabilities Port (ECP) − Compatible with IEEE 1284 specification

• Extension FDD mode supports disk drive B; and Extension 2FDD mode supports disk drives A and

B through parallel port

• Enhanced printer port back-drive current protection

Keyboard Controller

• 8042 based with optional F/W from AMIKKEYTM-2, Phoenix MultiKey/42TM or customer code

with 2K bytes of programmable ROM, and 256 bytes of RAM

• Asynchronous Access to Two Data Registers and One status Register

• Software compatibility with the 8042 and PC87911 microcontrollers

• Support PS/2 mouse

• Support port 92

• Support both interrupt and polling modes

• Fast Gate A20 and Hardware Keyboard Reset

• 8 Bit Timer/ Counter

• Support binary and BCD arithmetic

• 6MHz, 8 MHz, 12 MHz, or 16 MHz operating frequency

General Purpose I/O Ports

• 23 programmable general purpose I/O ports; 1 dedicate, 22 optional

• General purpose I/O ports can serve as simple I/O ports, interrupt steering inputs, watching dog

timer output, power LED output, infrared I/O pins, general purpose address decoder, KBC control

I/O pins

Publication Release Date: October 2001

-3-

Revision 0.53

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