h8s-2138 Renesas Electronics Corporation., h8s-2138 Datasheet - Page 344

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

Section 11 16-Bit Free-Running Timer
Buffered Input Capture Input Timing: ICRC and ICRD can operate as buffers for ICRA and
ICRB.
Figure 11.9 shows how input capture operates when ICRA and ICRC are used in buffer mode and
IEDGA and IEDGC are set to different values (IEDGA = 0 and IEDGC = 1, or IEDG A = 1 and
IEDGC = 0), so that input capture is performed on both the rising and falling edges of FTIA.
Rev. 4.00 Jun 06, 2006 page 290 of 1004
REJ09B0301-0400
FTIA
Input capture
signal
FRC
ICRA
ICRC
Input capture
input pin
Input capture
signal
Figure 11.9 Buffered Input Capture Timing (Usual Case)
M
n
(Input Capture Input When ICRA/B/C/D Is Read)
m
Figure 11.8 Input Capture Signal Timing
n
M
n + 1
ICRA/B/C/D read cycle
T
1
N
T
M
n
2
N
n
N + 1