SH7101 datasheet(289/560 Pages) RENESAS

289 / 560 page

Section 8 Multifunction Timer Pulse Unit (MTU)

Rev.1.00 Sep. 18, 2008 Page 255 of 522

REJ09B0069-0100

(24) Operation when Error Occurs during Complementary PWM Mode Operation, and

Operation is Restarted in Complementary PWM Mode

Figure 8.107 shows an explanatory diagram of the case where an error occurs in complementary

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

operation is restarted using completely new cycle and duty cycle settings).

RESET

TOCR

TMDR

(CPWM)

PFC

(MTU)

TOER

(1)

TSTR

(1)

Match

Error

occurs

PFC

(PORT)

TSTR

(0)

TMDR

(normal)

TOER

(0)

TOCR

TMDR

(CPWM)

TOER

(1)

PFC

(MTU)

TSTR

(1)

MTU module

output

TIOC3A

TIOC3B

TIOC3D

Port output

PE9

PE8

PE11

Hi-Z

Figure 8.107 Error Occurrence in Complementary PWM Mode,

Recovery in Complementary PWM Mode

1 to 10 are the same as in figure 8.104.

11. Set normal mode and make new settings. (MTU output goes low.)

12. Disable channel 3 and 4 output with TOER.

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

TOCR.

14. Set complementary PWM.

15. Enable channel 3 and 4 output with TOER.

16. Set MTU output with the PFC.

17. Operation is restarted by TSTR.

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