HD6433682 ETC, HD6433682 Datasheet - Page 183

• Manufacturer Part Number: HD6433682
• Description: Renesas 16-Bit Single-Chip Microcomputer H8 Family/H8/300H Tiny Series
• Manufacturer: ETC

11.4.3
Timer B1 can operate as an event counter in which TMIB1 is set to an event input pin. External
event counting is selected by setting bits TMB12 to TMB10 in TMB1 to 1. TCB1 counts up at
rising or falling edge of an external event signal input at pin TMB1.
When timer B1 is used to count external event input, bit IRQ1 in PMR1 should be set to 1 and
IEN1 in IENR1 should be cleared to 0 to disable IRQ1 interrupt requests.
11.5
Table 11.2 shows the timer B1 operating modes.
Table 11.2 Timer B1 Operating Modes
Operating Mode
TCB1
TMB1
Event Counter Operation
Timer B1 Operating Modes
Interval
Auto-reload Reset
Reset
Reset
Reset
Active
Functions
Functions
Functions
Sleep
Functions
Functions
Retained
Subactive
Halted
Halted
Retained
Rev. 3.00, 05/03, page 153 of 472
Halted
Halted
Retained
Subsleep
Standby
Halted
Halted
Retained