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W83977ATF Datasheet, PDF (4/207 Pages) Winbond – WINBOND I/O | |||
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W83977ATF
PRELIMINARY
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) â Compatible with IEEE 1284 specification
⢠Support Extended Capabilities Port (ECP) â 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: April 1998
-3 -
Revision 0.52
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