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Rev. 2.0, 11/00, page 289 of 1037
Section 12 Timer A
12.1
Overview
The Timer A is an 8-bit interval timer. It can be used as a clock timer when connected to a
32.768 kHz crystal oscillator.
12.1.1
Features
Features of the Timer A are as follows:
•
Choices of eight different types of internal clocks (
φ
/16384,
φ
/8192,
φ
/4096,
φ
/1024,
φ
/512,
φ
/256,
φ
/64 and
φ
/16) are available for your selection.
•
Four different overflowing cycles (1s, 0.5s, 0.25s and 0.03125s) are selectable as a clock
timer. (When using a 32.768 kHz crystal oscillator.)
•
Requests for interrupt will be output when the counter overflows.
Содержание Hitachi H8S/2191
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