Renesas SH7641 - Manual (Page 721)

Section 18 Multi-Function Timer Pulse Unit (MTU)
Rev. 4.00 Sep. 14, 2005 Page 671 of 982
REJ09B0023-0400
(28) Operation when Error Occurs during Reset-Synchronous PWM Mode Operation, and
Operation is Restarted in Complementary PWM Mode
Figure 18.112 shows an explanatory diagram of the case where an error occurs in reset-
synchronous PWM mode and operation is restarted in complementary PWM mode after re-setting.
1
RESET
2
TOCR
3
TMDR
(RPWM)
5
PFC
(MTU)
4
TOER
(1)
6
TSTR
(1)
7
Match
8
Error
occurs
9
PFC
(PORT)
10
TSTR
(0)
11
TOER
(0)
12
TOCR
13
TMDR
(CPWM)
14
TOER
(1)
15
PFC
(MTU)
16
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 18.112 Error Occurrence in Reset-Synchronous PWM Mode,
Recovery in Complementary PWM Mode
1 to 10 are the same as in figure 18.110.
11. Disable channel 3 and 4 output with TOER.
12. Select the complementary PWM output level and cyclic output enabling/disabling with
TOCR.
13. Set complementary PWM. (The MTU cyclic output pin goes low.)
14. Enable channel 3 and 4 output with TOER.
15. Set MTU output with the PFC.
16. Operation is restarted by TSTR.