SH7101 datasheet(195/560 Pages) RENESAS

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Section 8 Multifunction Timer Pulse Unit (MTU)

Rev.1.00 Sep. 18, 2008 Page 161 of 522

REJ09B0069-0100

Output selection

Select waveform output

mode

Set output timing

Start count operation

[1]

[2]

[3]

[1] Select initial value 0 output or 1 output,

and compare match output value 0

output, 1 output, or toggle output, by

means of TIOR. The set initial value is

output at the TIOC pin until the first

compare match occurs.

[2] Set the timing for compare match

generation in TGR.

[3] Set the CST bit in TSTR to 1 to start the

count operation.

Figure 8.6 Example of Setting Procedure for Waveform Output by Compare Match

Examples of Waveform Output Operation: Figure 8.7 shows an example of 0 output/1 output.

In this example TCNT has been designated as a free-running counter, and settings have been made

such that 1 is output by compare match A, and 0 is output by compare match B. When the set level

and the pin level coincide, the pin level does not change.

TCNT value

H'FFFF

H'0000

TIOCA

TIOCB

Time

TGRA

TGRB

No change

1 output

0 output

Figure 8.7 Example of 0 Output/1 Output Operation

Figure 8.8 shows an example of toggle output.

In this example, TCNT has been designated as a periodic counter (with counter clearing on

compare match B), and settings have been made such that the output is toggled by both compare

match A and compare match B.

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