SH7261 datasheet(630/1348 Pages) RENESAS

630 / 1348 page

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

Rev. 2.00 Sep. 07, 2007 Page 598 of 1312

REJ09B0320-0200

(28) Operation when Error Occurs during Reset-Synchronized PWM Mode Operation, and

Operation is Restarted in Complementary PWM Mode

Figure 12.152 shows an explanatory diagram of the case where an error occurs in reset-

synchronized PWM mode and operation is restarted in complementary PWM mode after re-

setting.

Power-on

reset

MTU2

module output

PB17

PB16

PB19

TOCR

TMDR

(RPWM)

PFC

(MTU2)

TOER

(1)

TSTR

(1)

Match

Error

occurs

PFC

(PORT)

TSTR

(0)

TOER

(0)

TOCR

TMDR

(CPWM)

TOER

(1)

PFC

(MTU2)

TSTR

(1)

TIOC3A

TIOC3B

TIOC3D

Port output

High-Z

Figure 12.152 Error Occurrence in Reset-Synchronized PWM Mode,

Recovery in Complementary PWM Mode

1 to 10 are the same as in figure 12.150.

11. Disable channel 3 and 4 output with TOER.

12. Select the complementary PWM output level and cyclic output enabling/disabling with

TOCR.

13. Set complementary PWM. (The MTU2 cyclic output pin goes low.)

14. Enable channel 3 and 4 output with TOER.

15. Set MTU2 output with the PFC.

16. Operation is restarted by TSTR.

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