SH7101 datasheet(196/560 Pages) RENESAS

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Section 8 Multifunction Timer Pulse Unit (MTU)

Rev.1.00 Sep. 18, 2008 Page 162 of 522

REJ09B0069-0100

TCNT value

H'FFFF

H'0000

TIOCB

TIOCA

Time

TGRB

TGRA

Toggle output

Counter cleared by TGRB compare match

Figure 8.8 Example of Toggle Output Operation

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

Start count

[1]

[2]

[1] Designate TGR as an input capture

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.

Figure 8.9 Example of Input Capture Operation Setting Procedure

SH7101 Datasheet(PDF) 196 Page - Renesas Technology Corp