w83977ctf Winbond Electronics Corp America, w83977ctf Datasheet - Page 12

• Manufacturer Part Number: w83977ctf
• Description: Winbond I/o
• Manufacturer: Winbond Electronics Corp America

Infrared
Parallel Port
Keyboard Controller
Internal diagnostic capabilities:
--- Loop-back controls for communications link fault isolation
--- Break, parity, overrun, framing error simulation
Programmable baud generator allows division of 1.8461 Mhz and 24 Mhz by 1 to (2
Maximum baud rate up to 921k bps for 14.769 Mhz and 1.5M bps for 24 Mhz
Supports IrDA version 1.0 SIR protocol with maximum baud rate up to 115.2K bps
Supports SHARP ASK-IR protocol with maximum baud rate up to 57,600 bps
Supports Consumer Infrared (CIR) port. (for W83977CTF only)
Compatible with IBM parallel port
Supports PS/2 compatible bi-directional parallel port
Supports Enhanced Parallel Port (EPP)
Supports 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
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
Supports PS/2 mouse
Supports port 92
Supports both interrupt and polling modes
Fast Gate A20 and Hardware Keyboard Reset
8 Bit Timer/ Counter
Supports binary and BCD arithmetic
6MHz, 8 MHz, 12 MHz, or 16 MHz operating frequency
B through parallel port
Compatible with IEEE 1284 specification
-3 -
Compatible with IEEE 1284 specification
TM
-2, Phoenix MultiKey/42
Publication Release Date: March 1999
W83977EF/ CTF
TM
or customer code
PRELIMINARY
16
-1)
Revision A1