SH7721 datasheet(595/1524 Pages) RENESAS

Part #	SH7721

Description	Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7700 Series

PDF	1524 Pages

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Manufacturer	RENESAS [Renesas Technology Corp]

Direct Link	http://www.renesas.com

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595 / 1524 page

Section 15

16-Bit Timer Pulse Unit (TPU)

Rev. 3.00 Jan. 18, 2008 Page 533 of 1458

REJ09B0033-0300

(b)

Examples of waveform output operation

Figure 15.6 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

TPU_TO pin (1 output)

TPU_TO pin (0 output)

Time

TGRA

No change

Figure 15.6

Example of 0 Output/1 Output Operation

Figure 15.7 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 compare match A.

TCNT value

H'FFFF

H'0000

TPU_TO pin

Time

TGRB

TGRA

Toggle output

Counter cleared by TGRB compare match

Figure 15.7

Example of Toggle Output Operation

SH7721 Datasheet(PDF) 595 Page - Renesas Technology Corp