W83977CTF Ver la hoja de datos (PDF) - Winbond

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W83977CTF

WINBOND I/O

Winbond 

W83977EF/ CTF

PRELIMINARY

• 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

• 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)

Parallel Port

• Compatible with IBM parallel port

• Supports PS/2 compatible bi-directional parallel port

• Supports Enhanced Parallel Port (EPP) − Compatible with IEEE 1284 specification

• Supports 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 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

• 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

Publication Release Date: March 1999

-3 -

Revision A1

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