M37920S4CGP データシートの表示（PDF） - MITSUBISHI ELECTRIC

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M37920S4CGP

16-BIT CMOS MICROCOMPUTER

MITSUBISHI ELECTRIC  

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MITSUBISHI MICROCOMPUTERS

M37920S4CGP

16-BIT CMOS MICROCOMPUTER

76 5432 1 0

Processor mode register 0

Address

5E16

Processor mode bits

0 0 : Do not select.

0 1 : Do not select.

1 0 : Microprocessor mode

1 1 : Do not select.

External bus wait number select bits

0 0 : 0 wait

0 1 : 1 wait

1 0 : 2 wait

1 1 : ALE expansion wait

Interrupt priority detection time select bits

0 0 : 7 cycles of φ

0 1 : 4 cycles of φ

1 0 : 2 cycles of φ

1 1 : Do not select.

Software reset bit

By a write of “1” to this bit, the microcomputer will be reset, and then, restarted.

Clock φ1 output select bit

0 : φ1 output is disabled. (P41 functions as a programmable I/O port pin.)

1 : φ1 output is enabled. (P41 functions as the clock φ1 output pin.)

Fig. 4 Processor mode register 0’s bit configuration

10

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