SH7144 Datasheet, PDF (375/773 Pages) Renesas Technology Corp – Hitachi SuperH RISC engine

Operation when Error Occurs during Reset-Synchronous PWM Mode Operation, and
Operation is Restarted in PWM Mode 1: Figure 11.111 shows an explanatory diagram of the
case where an error occurs in reset-synchronous PWM mode and operation is restarted in PWM
mode 1 after re-setting.
MTU module output
1
2
3
4
RESET TOCR TMDR TOER
(RPWM) (1)
5
PFC
(MTU)
6
TSTR
(1)
7
8
9
10 11
12 13
Match Error PFC TSTR TMDR TIOR PFC
occurs (PORT) (0) (PWM1) (1 init (MTU)
0 out)
14
TSTR
(1)
TIOC3A
TIOC3B
Not initialized (TIOC3B)
TIOC3D
Not initialized (TIOC3D)
Port output
PE8
High-Z
PE9
High-Z
PE11
High-Z
Figure 11.111 Error Occurrence in Reset-Synchronous PWM Mode,
Recovery in PWM Mode 1
1 to 10 are the same as in figure 11.110.
11. Set PWM mode 1. (MTU positive phase output is low, and negative phase output is high.)
12. Initialize the pins with TIOR. (In PWM mode 1, the TIOC *B side is not initialized.)
13. Set MTU output with the PFC.
14. Operation is restarted by TSTR.
Rev. 2.0, 09/02, page 335 of 732