W83977AF Information Storage Devices, Inc, W83977AF Datasheet - Page 14

• Manufacturer Part Number: W83977AF
• Description: W83877TF Plus Kbc, Cir, RTC
• Manufacturer: Information Storage Devices, Inc

Infrared
Parallel Port
Advanced Power Management (APM) Controlling
Keyboard Controller
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 [W83977AF only]
--- Single DMA channel for transmitter or receiver
--- 3rd UART with 32-byte FIFO is supported in both TX/RX transmission [W83977AF only]
--- 8-byte status FIFO is supported to store received frame status (such as overrun CRC error, etc.)
Support auto-config SIR and FIR [W83977AF only]
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
Enhanced printer port back-drive current protection
Power turned on when RTC reaches a preset date and time
Power turned on when a ring pulse or pulse train is detected on the PHRI, or when a high to low
Power turned on when PANSW input signal indicates a switch on event
Power turned off when PANSW input signal indicates a switch off event
Power turned off when a fail-safe event occurs (power-save mode detected but system is hung up)
Power turned off when software issues a power off command
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
6, 8, 12, or 16 Mhz operating frequency (16 Mhz available only if input clock rate = 14.318 Mhz)
B through parallel port
transition on PWAKIN1, or PWAKIN2 input signals
with 2K bytes of programmable ROM, and 256 bytes of RAM
Compatible with IEEE 1284 specification
Compatible with IEEE 1284 specification
TM
-2, Phoenix MultiKey/42
W83977F/ W83977AF
Publication Release Date: March 1998
TM
or customer code
PRELIMINARY
-3 -
Revision 0.58