m37905 Renesas Electronics Corporation., m37905 Datasheet - Page 463
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m37905
Manufacturer Part Number
m37905
Description
Mitsubishi 16-bit Single-chip Microcomputer 7700 Family / 7900 Series
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.M37905.pdf
(565 pages)
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APPENDIX
Appendix 2. Control registers
20-32
Watchdog timer register (Address 60
Watchdog timer frequency select register
5 to 1
7 to 0
Bit
Bit
0
6
7
Watchdog timer frequency
select bit
Nothing is assigned.
Watchdog timer clock source
select bits at STP termination
Initializes the watchdog timer.
When dummy data has been written to this register, the watchdog timer’s value is
initialized to “FFF
Bit name
16
” (dummy data: 00
16
)
7905 Group User’s Manual Rev.1.0
b7 b6
0 : Wf
1 : Wf
0 0 : fX
0 1 : fX
1 0 : fX
1 1 : fX
(Address 61
16
Function
to FF
512
32
32
16
128
64
16
).
16
)
Function
b7 b6 b5 b4 b3 b2 b1 b0
b7
Undefined
Undefined
At reset
At reset
0
0
0
R/W
R/W
RW
RW
RW
—
—
b0
Reference
Reference
14-3
14-3
14-3
15-7
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