SH7125_08 Datasheet, PDF (381/774 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH™ RISC engine Family

Section 9 Multi-Function Timer Pulse Unit 2 (MTU2)
Operation when Error Occurs during PWM Mode 1 Operation, and Operation is Restarted
in Complementary PWM Mode: Figure 9.134 shows an explanatory diagram of the case where
an error occurs in PWM mode 1 and operation is restarted in complementary PWM mode after re-
setting.
MTU2 module output
1
2
3
4
5
6
RESET TMDR TOER TIOR PFC TSTR
(PWM1) (1) (1 init (MTU2) (1)
0 out)
7
8
9
10 11 12 13 14 15 16 17 18 19
Match Error PFC TSTR TMDR TIOR TIOR TOER TOCR TMDR TOER PFC TSTR
occurs (PORT) (0) (normal) (0 init (disabled) (0)
(CPWM) (1) (MTU2) (1)
0 out)
TIOC3A
TIOC3B
Not initialized (TIOC3B)
TIOC3D
Not initialized (TIOC3D)
Port output
PE8
PE9
High-Z
High-Z
PE11
High-Z
Figure 9.134 Error Occurrence in PWM Mode 1,
Recovery in Complementary PWM Mode
1 to 10 are the same as in figure 9.130.
11. Set normal mode for initialization of the normal mode waveform generation section.
12. Initialize the PWM mode 1 waveform generation section with TIOR.
13. Disable operation of the PWM mode 1 waveform generation section with TIOR.
14. Disable channel 3 and 4 output with TOER.
15. Select the complementary PWM output level and cyclic output enabling/disabling with
TOCR.
16. Set complementary PWM.
17. Enable channel 3 and 4 output with TOER.
18. Set MTU2 output with the PFC.
19. Operation is restarted by TSTR.
Rev. 4.00 Jul. 25, 2008 Page 361 of 750
REJ09B0243-0400