Renesas SH7641 - Manual (Page 704)

Section 18 Multi-Function Timer Pulse Unit (MTU)
Rev. 4.00 Sep. 14, 2005 Page 654 of 982
REJ09B0023-0400
(11) Operation when Error Occurs during PWM Mode 1 Operation, and Operation is
Restarted in Complementary PWM Mode
Figure 18.95 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.
1
RESET
2
TMDR
(PWM1)
3
TOER
(1)
5
PFC
(MTU)
4
TIOR
(1 init
0 out)
6
TSTR
(1)
7
Match
8
Error
occurs
9
PFC
(PORT)
10
TSTR
(0)
11
TMDR
(normal)
12
TIOR
(0 init
0 out)
13
TIOR
(disabled)
14
TOER
(0)
15
TOCR
16
TMDR
(CPWM)
17
TOER
(1)
18
PFC
(MTU)
19
TSTR
(1)
• Not initialized (TIOC3B)
• Not initialized (TIOC3D)
High-Z
High-Z
High-Z
MTU module
output
TIOC3A
TIOC3B
TIOC3D
Port output
TIOC3B/PTE[6]
TIOC3A/PTE[7]
TIOC3D/PTE[4]
Figure 18.95 Error Occurrence in PWM Mode 1, Recovery in Complementary PWM Mode
1 to 10 are the same as in figure 18.91.
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 MTU output with the PFC.
19. Operation is restarted by TSTR.