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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
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