DESCRIPTION

The MK68901 MFP (Multi-Function Peripheral) is a combination of many of the necessary peripheral functions in a microprocessor system. Included are :

   Eight parallel I/O lines

   Interrrupt controller for 16 sources

   Four timers

   Single channel full duplex USART

  

■ 8 INPUT/OUTPUT PINS

   • Individually programmable direction

   • Individual interrupt source capability

      - Programmable edge selection

■ 16 SOURCE INTERRUPT CONTROLLER

   • 8 Internal sources

   • 8 External sources

   • Individual source enable

   • Individual source masking

   • Programmable interrupt service modes

      - Polling

      - Vector generation

         - Optional In-service status

   • Daisy chaining capability

■ FOUR TIMERS WITH INDIVIDUALLY PRO GRAMMABLE PRESCALING

   • Two multimode timers

      - Delay mode

      - Pulse width measurement mode

      - Event counter mode

   • Two delay mode timers

   • Independent clock input

   • Time out output option

■ SINGLE CHANNEL USART

   • Full Duplex

   • Asynchronous to 65 kbps

   • Byte synchronous to 1 Mbps

   • Internal/External baud rate generation

   • DMA handshake signals

   • Modem control

   • Loop back mode

■ 68000 BUS COMPATIBLE

■ 48 PIN DIP OR 52 PIN PLCC