Renesas SH7641 - Manual (Page 715)

Section 18 Multi-Function Timer Pulse Unit (MTU)
Rev. 4.00 Sep. 14, 2005 Page 665 of 982
REJ09B0023-0400
(22) Operation when Error Occurs during Complementary PWM Mode Operation, and
Operation is Restarted in PWM Mode 1
Figure 18.106 shows an explanatory diagram of the case where an error occurs in complementary
PWM mode and operation is restarted in PWM mode 1 after re-setting.
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
(PWM1)
12
TIOR
(1 init
0 out)
13
PFC
(MTU)
14
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 18.106 Error Occurrence in Complementary PWM Mode,
Recovery in PWM Mode 1
1 to 10 are the same as in figure 18.105.
11. Set PWM mode 1. (MTU output goes low.)
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.