W83977EF Datasheet, PDF (9/150 Pages) Winbond – WINBOND I/O

W83977EF
• 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 (2¹⁶-1)
• Maximum baud rate up to 921k bps for 14.769 Mhz and 1.5M bps for 24 Mhz
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
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
Publication Release Date: April 2003
-3 -
Revision 1.1