SH7144 Datasheet, PDF (362/773 Pages) Renesas Technology Corp – Hitachi SuperH RISC engine

Operation when Error Occurs during PWM Mode 2 Operation, and Operation is Restarted
in PWM Mode 1: Figure 11.98 shows an explanatory diagram of the case where an error occurs
in PWM mode 2 and operation is restarted in PWM mode 1 after re-setting.
MTU module output
TIOC*A
1
2
3
RESET TMDR TIOR
(PWM2) (1 init
0 out)
4
PFC
(MTU)
5
TSTR
(1)
6
Match
7
8
9
10 11
Error PFC TSTR TMDR TIOR
occurs (PORT) (0) (PWM1) (1 init
0 out)
Not initialized (cycle register)
12
PFC
(MTU)
13
TSTR
(1)
TIOC*B
Not initialized (TIOC*B)
Port output
PEn
High-Z
PEn
High-Z
n=0 to 15
Figure 11.98 Error Occurrence in PWM Mode 2, Recovery in PWM Mode 1
1 to 9 are the same as in figure 11.97.
10. Set PWM mode 1.
11. Initialize the pins with TIOR. (In PWM mode 1, the TIOC*B side is not initialized.)
12. Set MTU output with the PFC.
13. Operation is restarted by TSTR.
Rev. 2.0, 09/02, page 322 of 732