PRE
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ifica
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inal e sub
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taf
s no limits a
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This etric
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ice:
Not e para
om
S
ARY
IN
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MITSUBISHI MICROCOMPUTERS
M37920S4CGP
16-BIT CMOS MICROCOMPUTER
Processor mode
The M37920S4CGP operates only in the microprocessor mode ex-
clusive for the external ROM. Be sure to fix the level at pin MD0 to
Vcc and the level at pin MD1 to Vss. Also, be sure to fix bits 1, 0 at
address 5E
16
(the processor mode register 0) to “1” and “0”, respec-
tively.
Table 1. Relationship between pins MD0, MD1 and processor mode
Pin MD0
V
CC
level
(5 V)
Pin MD1
V
SS
level
(5 V)
Processor mode
After reset, the microcomputer
starts its operation in the mi-
croprocessor mode. (Be sure
to pin MD0 to Vcc level.)
Microprocessor mode
When the microcomputer starts its operation after reset with the level
at pin MD0 = Vcc level (5 V), the microcomputer is placed in the mi-
croprocessor mode.
9
RENESAS [ RENESAS TECHNOLOGY CORP ]
