HD6417641 RENESAS [Renesas Technology Corp], HD6417641 Datasheet - Page 719
HD6417641
Manufacturer Part Number
HD6417641
Description
Manufacturer
RENESAS [Renesas Technology Corp]
Datasheet
1.HD6417641.pdf
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(26) Operation when Error Occurs during Reset-Synchronous PWM Mode Operation, and
Figure 18.110 shows an explanatory diagram of the case where an error occurs in reset-
synchronous PWM mode and operation is restarted in normal mode after re-setting.
1. After a reset, MTU output is low and ports are in the high-impedance state.
2. Select the reset-synchronous PWM output level and cyclic output enabling/disabling with
3. Set reset-synchronous PWM.
4. Enable channel 3 and 4 output with TOER.
5. Set MTU output with the PFC.
6. The count operation is started by TSTR.
7. The reset-synchronous PWM waveform is output on compare-match occurrence.
8. An error occurs.
9. Set port output with the PFC and output the inverse of the active level.
10. The count operation is stopped by TSTR. (MTU output becomes the reset-synchronous PWM
11. Set normal mode. (MTU positive phase output is low, and negative phase output is high.)
12. Initialize the pins with TIOR.
13. Set MTU output with the PFC.
14. Operation is restarted by TSTR.
TIOC3D/PTE[4]
TIOC3A/PTE[7]
TIOC3B/PTE[6]
MTU module
Port output
TOCR.
output initial value.)
Operation is Restarted in Normal Mode
TIOC3D
TIOC3A
TIOC3B
output
Figure 18.110 Error Occurrence in Reset-Synchronous PWM Mode,
RESET
1
TOCR
2
High-Z
High-Z
High-Z
(CPWM)
TMDR
3
TOER
(1)
4
(MTU)
PFC
Recovery in Normal Mode
5
TSTR
(1)
6
Match
7
occurs
Error
8
Section 18 Multi-Function Timer Pulse Unit (MTU)
(PORT)
PFC
9
TSTR
(0)
10
Rev. 4.00 Sep. 14, 2005 Page 669 of 982
(normal)
TMDR
11
0 out)
TIOR
(1 init
12
(MTU)
PFC
13
TSTR
(1)
14
REJ09B0023-0400
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