SMD MK68901Q04 PLCC-52

I/O Controller Interface IC

Multi-Function Peripheral

Multi Function Peripheral, 8 I/O Lines, 16 Interrupt Sources
Single Channel USART, Four 8-Bit Timers

MULTI-FUNCTION PERIPHERAL

• 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 PROGRAMMABLE 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
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
The use of the MFP in a system can significantly reduce chip count, thereby reducing system cost. The
MFP is completely 68000 bus compatible, and 24
directly addressable internal registers provide the