SH7101 Datasheet, PDF (175/486 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer

8. Multi-Function Timer Pulse Unit (MTU)
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 and 1,
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
0 and 1, 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.
Example of Input Capture Operation Setting Procedure: Figure 8.9 shows an example of the
input capture operation setting procedure.
Input selection
Select input capture input
[1]
[1] Designate TGR as an input capture
register by means of TIOR, and select
rising edge, falling edge, or both edges
as the input capture source and input
signal edge.
[2] Set the CST bit in TSTR to 1 to start
the count operation.
Start count
[2]
<Input capture operation>
Figure 8.9 Example of Input Capture Operation Setting Procedure
Rev.2.00 Sep. 27, 2007 Page 141 of 448
REJ09B0394-0200