SH7040 Datasheet, PDF (478/923 Pages) Renesas Technology Corp – Renesas 32-Bit Single-Chip RISC Microprocessor SuperH RISC engine Family/SH7040 Series(CPU Core SH-2)

(26) Operation when Error Occurs during Reset-Synchronous PWM Mode Operation, and
Operation is Restarted in PWM Mode 1: Figure 12.122 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 output
1
2
3
4
RESET TOCR TMDR TOER
(RPWM) (1)
5
PFC
(MTU)
6
TSTR
(1)
7
8
9
10
11
12
Match Error PFC TSTR TMDR TIOR
occurs (PORT) (0) (PWM1) (1 init
0 out)
13
PFC
(MTU)
14
TSTR
(1)
TIOC3A
TIOC3B
• Not initialized (TIOC3B)
TIOC3D
• Not initialized (TIOC3D)
Port output
PE8
PE9
High-Z
High-Z
PE11
High-Z
Figure 12.122 Error Occurrence in Reset-Synchronous PWM Mode,
Recovery in PWM Mode 1
1 to 10 are the same as in figure 12.121.
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.
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