Timing Of Interval Timer Operation With 8-Bit Resolution (When Crn0 Is Set To Ffh) - NEC PD789860 User Manual

Figure 9-10. Timing of Interval Timer Operation with 8-Bit Resolution (When CRn0 Is Set to FFH)
Count clock
00H 01H
TMn0
CRn0
TCEn0
Count start
INTTMn0
Note
TMO
Note Timer 40 only
Remark n = 3, 4
Figure 9-11. Timing of Interval Timer Operation with 8-Bit Resolution
Count clock
00H 01H
TMn0
CRn0
TCEn0
Count start
INTTMn0
Note
TMO
Note Timer 40 only
Remark n = 3, 4
96
CHAPTER 9 8-BIT TIMERS 30 AND 40
01H
FFH 00H
Clear
(When CRn0 Changes from N to M (N < M))
N
00H
Clear
N
Interrupt acknowledgement
CRn0 overwritten
User's Manual U14826EJ5V0UD
00H 01H
FFH
Clear
FFH
N M 00H
Clear
M
Interrupt acknowledgement
00H FFH
FFH 00H
Clear
M 00H 01H
N
Clear