Renesas SH7641 - Manual (Page 718)

Section 18 Multi-Function Timer Pulse Unit (MTU)
Rev. 4.00 Sep. 14, 2005 Page 668 of 982
REJ09B0023-0400
(25) Operation when Error Occurs during Complementary PWM Mode Operation, and
Operation is Restarted in Reset-Synchronous PWM Mode
Figure 18.109 shows an explanatory diagram of the case where an error occurs in complementary
PWM mode and operation is restarted in reset-synchronous PWM mode.
1
RESET
2
TOCR
3
TMDR
(CPWM)
5
PFC
(MTU)
4
TOER
(1)
6
TSTR
(1)
7
Match
8
Error
occurs
9
PFC
(PORT)
10
TSTR
(0)
11
TMDR
(normal)
12
TOER
(0)
13
TOCR
14
TMDR
(RPWM)
15
TOER
(1)
16
PFC
(MTU)
17
TSTR
(1)
High-Z
High-Z
High-Z
MTU module
output
TIOC3A
TIOC3B
TIOC3D
Port output
TIOC3B/PTE[6]
TIOC3A/PTE[7]
TIOC3D/PTE[4]
Figure 18.109 Error Occurrence in Complementary PWM Mode,
Recovery in Reset-Synchronous PWM Mode
1 to 10 are the same as in figure 18.105.
11. Set normal mode. (MTU output goes low.)
12. Disable channel 3 and 4 output with TOER.
13. Select the reset-synchronous PWM mode output level and cyclic output enabling/disabling
with TOCR.
14. Set reset-synchronous PWM.
15. Enable channel 3 and 4 output with TOER.
16. Set MTU output with the PFC.
17. Operation is restarted by TSTR.