
W83977TF
PRELIMINARY
Publication Release Date: April 1998
-3 -
Revision 0.62
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 S/W driver for Windows95
TM
and Windows98
TM
(Memphis
TM
)
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 AMIKKEY
TM
-2, Phoenix MultiKey/42
TM
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;
3
dedicate,
20
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
OnNow Funtions
Keyboard wake-up by programmable keys
Mouse wake-up by programmable buttons
Package
128-pin PQFP