SH7147 Datasheet, PDF (491/1108 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer SuperH™ RISC engine Family

Section 10 Multi-Function Timer Pulse Unit 2 (MTU2) and Multi-Function Timer Pulse Unit 2S (MTU2S)
Operation when Error Occurs during PWM Mode 1 Operation, and Operation is Restarted
in PWM Mode 2: Figure 10.145 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.
1
2
3
RESET TMDR TOER
(PWM1) (1)
MTU2 module output
TIOC*A
4
5
6
TIOR PFC TSTR
(1 init (MTU2) (1)
0 out)
7
8
9
10 11 12 13 14
Match Error PFC TSTR TMDR TIOR PFC TSTR
occurs (PORT) (0) (PWM2) (1 init (MTU2) (1)
0 out)
Not initialized (cycle register)
TIOC*B
Not initialized (TIOC*B)
Port output
PEn
Hi-Z
PEn
Hi-Z
n = 0 to 15
Figure 10.145 Error Occurrence in PWM Mode 1, Recovery in PWM Mode 2
1 to 10 are the same as in figure 10.143.
11. Set PWM mode 2.
12. Initialize the pins with TIOR. (In PWM mode 2, the cycle register pins are not initialized.)
13. Set MTU2 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.
Rev. 3.00 Oct. 06, 2008 Page 467 of 1080
REJ09B0230-0300