SH7101 datasheet(265/486 Pages) RENESAS

265 / 486 page

8. Multi-Function Timer Pulse Unit (MTU)

Rev.2.00 Sep. 27, 2007 Page 231 of 448

REJ09B0394-0200

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

Restarted in PWM Mode 2: Figure 8.92 shows an explanatory diagram of the case where an

error occurs in PWM mode 1 and operation is restarted in PWM mode 2 after re-setting.

RESET

TMDR

(PWM1)

TOER

(1)

PFC

(MTU)

TIOR

(1 init

0 out)

TSTR

(1)

Match

Error

occurs

PFC

(PORT)

TSTR

(0)

TMDR

(PWM2)

TIOR

(1 init

0 out)

PFC

(MTU)

TSTR

(1)

MTU module

output

TIOC*A

TIOC*B

Port output

PEn

• Not initialized (TIOC*B)

• Not initialized (cycle register)

Note: n = 0 to 15

Hi-Z

Figure 8.92 Error Occurrence in PWM Mode 1, Recovery in PWM Mode 2

1 to 10 are the same as in figure 8.90.

11. Set PWM mode 2.

12. Initialize the pins with TIOR. (In PWM mode 2, the cycle register pins are not initialized.)

13. Set MTU output with the PFC.

14. Operation is restarted by TSTR.

Note:

PWM mode 2 can only be set for channels 0 to 2, and therefore TOER setting is not

necessary.

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