MK68901 datasheet(1/33 Pages) STMICROELECTRONICS

部件名	MK68901

功能描述	MULTI.FUNCTION PERIPHERAL

PDF	33 Pages

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制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

标志

1 / 33 page

MK68901

December 1988

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 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

Figure 1 : Pin connections.

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 re-

duce chip count, thereby reducing system cost. The

MFP is completely 68000 bus compatible, and 24 di-

rectly addressable internal registers provide the ne-

MFP

1

DPIP48

PLCC52

1/33

类似零件编号 - MK68901

制造商	部件名	数据表	功能描述
STMicroelectronics	MK68564	464Kb / 46P	SERIAL INPUT OUTPUT Jan-1989
	MK68564N-04	464Kb / 46P	SERIAL INPUT OUTPUT Jan-1989
	MK68564N-05	464Kb / 46P	SERIAL INPUT OUTPUT Jan-1989
	MK68564Q-04	464Kb / 46P	SERIAL INPUT OUTPUT Jan-1989
	MK68564Q-05	464Kb / 46P	SERIAL INPUT OUTPUT Jan-1989

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