CHAPTER 7 8-BIT TIMERS 50, 60
User’s Manual U15075EJ2V1UD
154
Figure 7-12. Timing of Interval Timer Operation with 8-Bit Resolution
(When CRn0 Changes from N to M (N
>
M))
Count clock
CRn0
TCEn0
INTTMn0
TOnm
TMn0
00H
00H
00H
N
−
1
N
M
N
M
N
M
00H
FFH
M
H
Clear
Clear
Clear
TMn0 overflows
because M < N
CRn0 overwritten
Remark
n = 5, 6
nm = 50, 60, 61
Figure 7-13. Timing of Interval Timer Operation with 8-Bit Resolution
(When Timer 60 Match Signal Is Selected for Timer 50 Count Clock)
Timer 60
count clock
CR60
TCE60
INTTM60
TO60
TM60
N
00H
M
00H
00H
01H
M
N
M
00H
M
00H
00H
01H
Y
−
1
Y
00H
Y
00H
Y
Input clock to timer 50
(timer 60 match signal)
TO50
INTTM50
TCE50
CR50
TM50
Clear
Clear
Clear
Clear
Count start
Count start