Datasheet

Section 13 Timer Connection [H8S/2138 Group]
Rev. 4.00 Jun 06, 2006 page 363 of 1004
REJ09B0301-0400
Table 13.7 Examples of TCORB, TCR, and TCSR Settings
Register Bit(s) Abbreviation Contents Description
7CMIEB 0
6CMIEA 0
5OVIE 0
Interrupts due to compare-match and
overflow are disabled
4 and 3 CCLR1,
CCLR0
11 TCNT is cleared by the rising edge of the
external reset signal (inverse of the IVI
signal)
TCR in
TMR1
2 to 0 CKS2 to CKS0 101 TCNT is incremented on the rising edge
of the external clock (IHI signal)
0011 Not changed by compare-match B;
output inverted by compare-match A
(toggle output)
TCSR in
TMR1
3 to 0 OS3 to OS0
1001
or
when TCORB ≤ TCORA, 1 output on
compare-match B, 0 output on compare-
match A
TOCRB in TMR1 H'03
(example)
Compare-match on the 4th (example)
rise of the IHI signal after the rise of the
inverse of the IVI signal
0
1
2
3
4
5
TCNT
TCNT = TCORB (3)
IHI signal
IVI signal (PDC signal)
IVO signal
(without fall modification,
with IHI synchronization)
IVO signal
(with fall modification,
without IHI synchronization)
IVO signal
(with fall modification
and IHI synchronization)
Figure 13.7 Fall Modification/IHI Synchronization Timing Chart