SH7641 Datasheet, PDF (699/1036 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH™ RISC engine Family / SH7641 Series

Section 18 Multi-Function Timer Pulse Unit (MTU)
(6) Operation when Error Occurs during Normal Mode Operation, and Operation is
Restarted in Reset-Synchronous PWM Mode
Figure 18.90 shows an explanatory diagram of the case where an error occurs in normal mode and
operation is restarted in reset-synchronous PWM mode after re-setting.
MTU module
output
TIOC3A
TIOC3B
TIOC3D
Port output
TIOC3A/PTE[7]
TIOC3B/PTE[6]
TIOC3D/PTE[4]
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
RESETTMDR TOER TIOR PFC TSTR Match Error PFC TSTR TIOR TIOR TOER TOCRTMDR TOER PFC TSTR
(normal) (1) (1 init (MTU) (1)
occurs(PORT) (0) (0 init(disabled) (0)
(CPWM) (1) (MTU) (1)
0 out)
0 out)
High-Z
High-Z
High-Z
Figure 18.90 Error Occurrence in Normal Mode, Recovery in Reset-Synchronous PWM
Mode
1 to 13 are the same as in figure 18.89.
14. Select the reset-synchronous PWM output level and cyclic output enabling/disabling with
TOCR.
15. Set reset-synchronous PWM.
16. Enable channel 3 and 4 output with TOER.
17. Set MTU output with the PFC.
18. Operation is restarted by TSTR.
Rev. 4.00 Sep. 14, 2005 Page 649 of 982
REJ09B0023-0400