w83977eg Winbond Electronics Corp America, w83977eg Datasheet - Page 9

• Manufacturer Part Number: w83977eg
• Description: Winbond Isa I/o W83977ef W83977eg
• Manufacturer: Winbond Electronics Corp America

Infrared
Parallel Port
Keyboard Controller
General Purpose I/O Ports
OnNow Funtions
Package
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
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
Enhanced printer port back-drive current protection
8042 based with optional F/W from AMIKKEY
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
14 programmable general purpose I/O ports; 6 dedicate, 8 optional
Keyboard Wake-Up by programmable keys
Mouse Wake-Up by programmable buttons
128-pin PQFP
and B through parallel port
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
W83977EF-AW/W83977EG-AW
-7-
TM
-2, Phoenix MultiKey/42
Publication Release Date: Apr. 2006
TM
or customer code
Revision 1.2