H8SSLASH2218 datasheet(352/750 Pages) RENESAS

部件名	H8S/2218

功能描述	16-Bit Single-Chip Microcomputer H8S Family/H8S/2200 Series

PDF	750 Pages

Scroll/Zoom	100%

制造商	RENESAS [Renesas Technology Corp]

网页	http://www.renesas.com

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Section 9 16-Bit Timer Pulse Unit (TPU)

Rev.6.00 Jun. 03, 2008 Page 304 of 698

REJ09B0074-0600

2. Examples of waveform output operation

Figure 9.10 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 so 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 9.10 Example of 0 Output/1 Output Operation

Figure 9.11 shows an example of toggle output.

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

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

compare match A and compare match B.

TCNT value

H'FFFF

H'0000

TIOCB

TIOCA

Time

TGRB

TGRA

Toggle output

Counter cleared by TGRB compare match

Figure 9.11 Example of Toggle Output Operation

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