SH7261 datasheet(613/1348 Pages) RENESAS

613 / 1348 page

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

Rev. 2.00 Sep. 07, 2007 Page 581 of 1312

REJ09B0320-0200

(11) Operation when Error Occurs during PWM Mode 1 Operation, and Operation is

Restarted in Complementary PWM Mode

Figure 12.135 shows an explanatory diagram of the case where an error occurs in PWM mode 1

and operation is restarted in complementary PWM mode after re-setting.

Power-on

reset

TMDR

(PWM1)

TOER

(1)

PFC

(MTU2)

TIOR

(1 init

0 out)

TSTR

(1)

Match

Error

occurs

PFC

(PORT)

TSTR

(0)

TMDR

(normal)

TIOR

(0 init

0 out)

TIOR

(disabled)

TOER

(0)

TOCR

TMDR

(CPWM)

TOER

(1)

PFC

(MTU2)

TSTR

(1)

MTU2

module output

TIOC3A

TIOC3B

TIOC3D

Port output

PB17

PB16

PB19

Not initialized (TIOC3B)

Not initialized (TIOC3D)

High-Z

Figure 12.135 Error Occurrence in PWM Mode 1,

Recovery in Complementary PWM Mode

1 to 10 are the same as in figure 12.131.

11. Set normal mode for initialization of the normal mode waveform generation section.

12. Initialize the PWM mode 1 waveform generation section with TIOR.

13. Disable operation of the PWM mode 1 waveform generation section with TIOR.

14. Disable channel 3 and 4 output with TOER.

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

TOCR.

16. Set complementary PWM.

17. Enable channel 3 and 4 output with TOER.

18. Set MTU2 output with the PFC.

19. Operation is restarted by TSTR.

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