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APPENDIX
Appendix 3. Control registers
Timer Bi register
(b15)
b7
Timer Bi mode register
b7 b6 b5
b4 b3 b2
20–24
(b8)
b0 b7
b1 b0
Timer Bi mode register (i = 0 to 2) (Addresses 5B
Bit
0
Operating mode select bits
1
2
These bits have different functions according to the operating mode.
3
Nothing is assigned.
4
These bits have different functions according to the operating mode.
5
6
7
Note: Bit 5 is ignored in the timer and event counter modes; its value is undefined at reading.
7751 Group User's Manual
b0
Timer B0 register (Addresses 51
Timer B1 register (Addresses 53
Timer B2 register (Addresses 55
Bit
15 to 0 These bits have different functions according
to the operating mode.
Bit name
b1 b0
0 0 : Timer mode
0 1 : Event counter mode
1 0 : Pulse period/Pulse width
measurement mode
1 1 : Not selected
, 50
)
16
16
, 52
)
16
16
, 54
)
16
16
Functions
to 5D
)
16
16
Functions
Undefined
Undefined
RW
At reset
Undefined
RW
At reset
RW
0
RW
0
RW
0
RW
0
RW
–
RO
(Note)
RW
0
0
RW
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