UPD78F9500MA-CAC-A Datasheet, PDF (135/342 Pages) Renesas Technology Corp – 8-Bit Single-Chip Microcontrollers

CHAPTER 7 8-BIT TIMER H1
(1) 8-bit timer H compare register 01 (CMP01)
This register can be read or written by an 8-bit memory manipulation instruction.
Reset signal generation clears this register to 00H.
Figure 7-2. Format of 8-Bit Timer H Compare Register 01 (CMP01)
Address: FF0EH After reset: 00H R/W
Symbol
7
6
5
4
3
2
1
0
CMP01
Caution CMP01 cannot be rewritten during timer count operation.
(2) 8-bit timer H compare register 11 (CMP11)
This register can be read or written by an 8-bit memory manipulation instruction.
Reset signal generation clears this register to 00H.
Figure 7-3. Format of 8-Bit Timer H Compare Register 11 (CMP11)
Address: FF0FH After reset: 00H R/W
Symbol
7
6
5
4
3
2
1
0
CMP11
CMP11 can be rewritten during timer count operation.
If the CMP11 value is rewritten during timer operation, the compare value after the rewrite takes effect at the timing
at which the count value and the compare value before the rewrite match. If the timing at which the count value and
compare value match conflicts with the timing of the writing from the CPU to CMP11, the compare value after the
rewrite takes effect at the timing at which the next count value and the compare value before the rewrite match.
Caution In the PWM output mode, be sure to set CMP11 when starting the timer count operation (TMHE1
= 1) after the timer count operation was stopped (TMHE1 = 0) (be sure to set again even if setting
the same value to CMP11).
User’s Manual U18172EJ3V0UD
133