SH7261 datasheet(568/1348 Pages) RENESAS

Part #	SH7261

Description	32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7260 Series

PDF	1348 Pages

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Manufacturer	RENESAS [Renesas Technology Corp]

Direct Link	http://www.renesas.com

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568 / 1348 page

Section 12 Multi-Function Timer Pulse Unit 2 (MTU2)

Rev. 2.00 Sep. 07, 2007 Page 536 of 1312

REJ09B0320-0200

12.4.12

TCNT Capture at Crest and/or Trough in Complementary PWM Operation

The TCNT value is captured in TGR at either the crest or trough or at both the crest and trough

during complementary PWM operation. The timing for capturing in TGR can be selected by

TIOR.

Figure 12.82 is an operating example in which TCNT is used as a free-running counter without

being cleared, and the TCNT value is captured in TGR at the specified timing (either crest or

trough, or both crest and trough).

Tdead

Tdelay

Upper arm signal

Lower arm signal

Inverter output

monitor signal

Dead time delay signal

TGRA_4

3DE7

3E5B

3ED3

3F37

3FAF

3DE7

TCNT[15:0]

TGR[15:0]

Up-count/down-count

signal (udflg)

Figure 12.82 TCNT Capturing at Crest and/or Trough in Complementary PWM Operation

SH7261 Datasheet(PDF) 568 Page - Renesas Technology Corp