h8s-2138 Renesas Electronics Corporation., h8s-2138 Datasheet - Page 410

• Manufacturer Part Number: h8s-2138
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

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