W83977EF Winbond Electronics Corp America, W83977EF Datasheet - Page 9

• Manufacturer Part Number: W83977EF
• Description: Description = W83877TF Plus Kbc, GP I/O, Wake-Up, Power Fail Resume ;; Package = QFP 128
• Manufacturer: Winbond Electronics Corp America

• Internal diagnostic capabilities:
• 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
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
• Enhanced printer port back-drive current protection
Keyboard Controller
• 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
• 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
--- Loop-back controls for communications link fault isolation
--- Break, parity, overrun, framing error simulation
B through parallel port
-3 -
TM
-2, Phoenix MultiKey/42
Publication Release Date: April 2003
TM
or customer code
W83977EF
16
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Revision 1.1