NEC PD78058FY(A) - Manual (Page 235)

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CHAPTER 9 8-BIT TIMER/EVENT COUNTERS
Figure 9-13. Square-Wave Output Operation Timing
Count Clock
TM1 00H
00H
00H 01H FFH 00H
01H 02H
FFH 00H 01H FFH
M – 1
00H
00H M
01H N N
N
M
N + 1
TM2
CR10
CR20
TO2
Count Start Level Inversion
Counter Clear
Interval Time