DF2138AFA20 Datasheet, PDF (412/1063 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

Section 13 Timer Connection [H8S/2138 Group]
Table 13.3 Examples of TCR Settings
Bit(s)
7
6
5
4 and 3
Abbreviation
CMIEB
CMIEA
OVIE
CCLR1, CCLR0
Contents
0
0
0
11
2 to 0
CKS2 to CKS0
001
Description
Interrupts due to compare-match and overflow
are disabled
TCNT is cleared by the rising edge of the
external reset signal (IHI signal)
Incremented on internal clock: φ
Table 13.4 Examples of TCORB (Pulse Width Threshold) Settings
H'07
H'0F
H'1F
H'3F
H'7F
φ:10 MHz
0.8 µs
1.6 µs
3.2 µs
6.4 µs
12.8 µs
φ: 12 MHz
0.67 µs
1.33 µs
2.67 µs
5.33 µs
10.67 µs
φ: 16 MHz
0.5 µs
1 µs
2 µs
4 µs
8 µs
φ: 20 MHz
0.4 µs
0.8 µs
1.6 µs
3.2 µs
6.4 µs
IHI signal
PDC signal
IHI signal is tested
at compare-match
TCNT
TCORB
(threshold)
Counter reset
caused by
IHI signal
Counter clear At the 2nd compare-match,
caused by
IHI signal is not tested
TCNT overflow
Figure 13.2 Timing Chart for PWM Decoding
Rev. 4.00 Jun 06, 2006 page 356 of 1004
REJ09B0301-0400