NEC mPD789426 Series User Manual page 150

CHAPTER 7 8-BIT TIMER
Figure 7-14. Timing of Operation of External Event Counter with 8-Bit Resolution
TMI60 pin input
N − 1
TM60 count value 00H 01H 02H 03H 04H 05H N 00H 01H 02H 03H
CR60 N
TCE60
INTTM60
Remark N = 00H to FFH
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User's Manual U15075EJ1V0UM00