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Section 9 Timers
Rev. 6.00 Sep 12, 2006 page 209 of 526
REJ09B0326-0600
9.2.4
Timer A Operation States
Table 9.4 summarizes the timer A operation states.
Table 9.4
Timer A Operation States
Operation Mode
Reset
Active
Sleep
Watch
Sub-
active
Sub-
sleep
Standby
TCA
Interval
Reset
Functions
Functions Halted Halted Halted Halted
Clock time base Reset Functions Functions Functions Functions Functions Halted
TMA
Reset Functions Retained Retained Functions Retained Retained
Note: When the real-time clock time base function is selected as the internal clock of TCA in
active mode or sleep mode, the internal clock is not synchronous with the system clock, so
it is synchronized by a synchronizing circuit. This may result in a maximum error of 1/
φ
(s) in
the count cycle.
9.3 Timer
B1
9.3.1 Overview
Timer B1 is an 8-bit timer that increments each time a clock pulse is input. This timer has two
operation modes, interval and auto reload.
Features
Features of timer B1 are given below.
•
Choice of seven internal clock sources (
φ
/8192,
φ
/2048,
φ
/512,
φ
/256,
φ
/64,
φ
/16,
φ
/4) or an
external clock (can be used to count external events).
•
An interrupt is requested when the counter overflows.
Summary of Contents for F-ZTAT H8/3642A Series
Page 6: ...Rev 6 00 Sep 12 2006 page iv of xx ...
Page 8: ...Rev 6 00 Sep 12 2006 page vi of xx ...
Page 22: ...Rev 6 00 Sep 12 2006 page xx of xx ...
Page 124: ...Section 5 Power Down Modes Rev 6 00 Sep 12 2006 page 102 of 526 REJ09B0326 0600 ...
Page 188: ...Section 6 ROM Rev 6 00 Sep 12 2006 page 166 of 526 REJ09B0326 0600 ...
Page 190: ...Section 7 RAM Rev 6 00 Sep 12 2006 page 168 of 526 REJ09B0326 0600 ...
Page 298: ...Section 9 Timers Rev 6 00 Sep 12 2006 page 276 of 526 REJ09B0326 0600 ...
Page 378: ...Section 12 A D Converter Rev 6 00 Sep 12 2006 page 356 of 526 REJ09B0326 0600 ...
Page 446: ...Section 13 Electrical Characteristics Rev 6 00 Sep 12 2006 page 424 of 526 REJ09B0326 0600 ...