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HD64F3694HV Datasheet, PDF (161/452 Pages) Renesas Technology Corp – Hardware Manual Renesas 16-Bit Single-Chip Microcomputer H8 Family/H8/300H Tiny Series | |||
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Section 10 Timer A
Section 10 Timer A
Timer A is an 8-bit timer with interval timing and real-time clock time-base functions. The clock
time-base function is available when a 32.768kHz crystal oscillator is connected. Figure 10.1
shows a block diagram of timer A.
10.1 Features
⢠Timer A can be used as an interval timer or a clock time base.
⢠An interrupt is requested when the counter overflows.
⢠Any of eight clock signals can be output from pin TMOW: 32.768 kHz divided by 32, 16, 8, or
4 (1 kHz, 2 kHz, 4 kHz, 8 kHz), or the system clock divided by 32, 16, 8, or 4.
Interval Timer
⢠Choice of eight internal clock sources (Ï/8192, Ï/4096, Ï/2048, Ï/512, Ï/256, Ï/128, Ï/32, Ï8)
Clock Time Base
⢠Choice of four overflow periods (1 s, 0.5 s, 0.25 s, 31.25 ms) when timer A is used as a clock
time base (using a 32.768 kHz crystal oscillator).
TIM08A0A_000020020200
Rev.5.00 Nov. 02, 2005 Page 131 of 418
REJ09B0028-0500
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