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IN
MITSUBISHI MICROCOMPUTERS
M37920S4CGP
16-BIT CMOS MICROCOMPUTER
7
6
5
4
3
2
1
0
Processor mode register 0
Processor mode bits
0 0 : Do not select.
0 1 : Do not select.
1 0 : Microprocessor mode
1 1 : Do not select.
Address
5E
16
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
φ
1
output select bit
0 :
φ
1
output is disabled. (P4
1
functions as a programmable I/O port pin.)
1 :
φ
1
output is enabled. (P4
1
functions as the clock
φ
1
output pin.)
Fig. 4 Processor mode register 0’s bit configuration
10
RENESAS [ RENESAS TECHNOLOGY CORP ]
