w83977atf Winbond Electronics Corp America, w83977atf Datasheet - Page 4
w83977atf
Manufacturer Part Number
w83977atf
Description
Winbond I/o
Manufacturer
Winbond Electronics Corp America
Datasheet
1.W83977ATF.pdf
(207 pages)
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Infrared
Parallel Port
Keyboard Controller
General Purpose I/O Ports
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
Compatible with IBM parallel port
Support PS/2 compatible bi-directional parallel port
Support Enhanced Parallel Port (EPP)
Support Extended Capabilities Port (ECP)
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
8042 based with optional F/W from AMIKKEY
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
23
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
--- 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,
Support auto-config SIR and FIR
with 2K bytes of programmable ROM, and 256 bytes of RAM
programmable general purpose I/O ports;
etc.)
Compatible with IEEE 1284 specification
Compatible with IEEE 1284 specification
-3 -
1
TM
dedicate,
-2, Phoenix MultiKey/42
22
optional
Publication Release Date: April 1998
TM
W83977ATF
or customer code
PRELIMINARY
Revision 0.52
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