Renesas 7700 FAMILY User Manual page 469

APPENDIX
Appendix 3. Control registers
Up-down register
b7 b6 b5 b4 b3 b2
20–18
b1 b0
Up-down register (Address 44
Bit
0 Timer A0 up-down bit
1
Timer A1 up-down bit
2
Timer A2 up-down bit
3
Timer A3 up-down bit
4 Timer A4 up-down bit
5
Timer A2 two-phase pulse signal
processing select bit
Timer A3 two-phase pulse signal
6
processing select bit
Timer A4 two-phase pulse signal
7
processing select bit
Note: Use the LDM or STA instruction when writing to bits 5 to 7.
7751 Group User's Manual
)
16
Bit name
0 : Down-count
1 : Up-count
This function is valid when the
contents of the up-down register is
selected as the up-down switching
factor.
0 : Two-phase pulse signal
processing function disabled
(Note)
1 : Two-phase pulse signal
processing function enabled
(Note)
When not using the two-phase pulse
signal processing function, set the bit
to "0."
(Note)
The value is "0" at reading.
Functions
At reset
0
0
0
0
0
0
0
0
RW
RW
RW
RW
RW
RW
WO
WO
WO