HD6412373R RENESAS [Renesas Technology Corp], HD6412373R Datasheet - Page 656

• Manufacturer Part Number: HD6412373R
• Description: Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2300 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

Section 11 16-Bit Timer Pulse Unit (TPU)
Input Capture Function: The TCNT value can be transferred to TGR on detection of the TIOC
pin input edge.
Rising edge, falling edge, or both edges can be selected as the detection edge. For channels 0, 1, 3,
and 4, it is also possible to specify another channel’s counter input clock or compare match signal
as the input capture source.
Note: When another channel’s counter input clock is used as the input capture input for channels
1. Example of setting procedure for input capture operation
Rev.7.00 Mar. 18, 2009 page 588 of 1136
REJ09B0109-0700
Figure 11.8 shows an example of the setting procedure for input capture operation.
<Input capture operation>
Select input capture input
0 and 3, φ/1 should not be selected as the counter input clock used for input capture input.
Input capture will not be generated if φ/1 is selected.
Figure 11.8 Example of Setting Procedure for Input Capture Operation
Input selection
Start count
[1]
[2]
[1] Designate TGR as an input capture register by
[2] Set the CST bit in TSTR to 1 to start the count
means of TIOR, and select the input capture
source and input signal edge (rising edge, falling
edge, or both edges).
operation.