GENERAL DESCRIPTION

The W83787IF is a derivative product of W83787F with one of UARTs support HPSIR and ASKIR. The W83787IF integrates a disk drive adapter ,two 16550 compatible UARTs, and one parallel port with EPP mode, ECP mode, and joystick mode.

FEATURES

? 1.44MB Floppy Disk Controller

--- Support four 360K,720K,1.2M,1.44M floppy disk drives

--- Data Transfer Rate 250Kb/s,300Kb/s,500Kb/s

--- Single 24Mhz crystal input

--- FDD anti-virus function with software write protect and FDD write enable signal, write data signal force inactive

? Serial Ports

--- Two high speed 16550 UART with 16 byte FIFO

--- Programmable baud rate generator

--- Modem Control Circuitry

--- Support IrDA(HPSIR) and Amplitude Shift Keyed IR(ASKIR) Infrared communication

--- MIDI compatible

? Parallel Port

--- Support Standard Parallel Port(SPP),Enhanced Parallel Port(EPP), Enhanced Capability Port(ECP)

--- Joystick mode supports joystick through parallel port

--- Extension FDD mode support disk drive B through parallel port

--- Extension Adapter Mode support pocket devices through parallel port

--- Extension 2FDD mode support disk drive A and B through parallel port

--- Compatible with IBM Parallel Port

--- Support parallel port with bi-directional lines

? IDE Interface

--- Support two embedded hard disk drives(IDE AT BUS)

? Game Port Supported

? Based on pinout of W83777/787F

? Two General Purpose I/O pins

? 100 PQFP