UPD78F0138 NEC, UPD78F0138 Datasheet - Page 216

• Manufacturer Part Number: UPD78F0138
• Description: (UPD78xxxx) 8-Bit Single-Chip Microcontrollers
• Manufacturer: NEC

CHAPTER 8 8-BIT TIMERS H0 AND H1
Figure 8-10. Timing of Interval Timer/Square-Wave Output Operation (2/2)
(b) Operation when CMP0n = FFH
Count clock
Count start
00H
01H
FEH
FFH
00H
FEH
FFH
00H
8-bit timer counter Hn
Clear
Clear
FFH
CMP0n
TMHEn
INTTMHn
TOHn
Interval time
(c) Operation when CMP0n = 00H
Count clock
Count start
8-bit timer counter Hn
00H
00H
CMP0n
TMHEn
INTTMHn
TOHn
Interval time
Remark n = 0, 1
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User’s Manual U16228EJ2V0UD