HD6412320 RENESAS [Renesas Technology Corp], HD6412320 Datasheet - Page 518

• Manufacturer Part Number: HD6412320
• Description: Renesas 16-Bit Single-Chip Microcomputer H8S Family H8S-2300 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

Section 10 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 detected 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
• Example of input capture operation setting procedure
Rev.6.00 Sep. 27, 2007 Page 488 of 1268
REJ09B0220-0600
Figure 10.12 shows an example of the input capture operation setting procedure.
<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 10.12 Example of Input Capture Operation Setting Procedure
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.