Timing Of Square-Wave Output With 16-Bit Resolution - NEC PD789488 User Manual

Count clock
TM60 count value 00H N
Not cleared because TM50 does not match
CR60 N N
TCE60
Count start
TM50 count pulse
TM50 00H
X
CR50
INTTM60
Interrupt not generated because
TM50 does not match
TO60 Note
Note The initial value of TO60 is low level when output is enabled.
Remark X = 00H to FFH, N = 00H to FFH
Figure 7-21. Timing of Square-Wave Output with 16-Bit Resolution
7FH 80H FFH 00H 7FH 80H
N N
N
01H
X
FFH 00H N 7FH 80H
00H
Cleared because TM50 and TM60 match simultaneously
N N
X − 1
X
00H
X
Interrupt acknowledgement
FFH 00H N
00H
N
N N
X − 1
X
00H
Interrupt acknowledgement