SH7125_08 Datasheet, PDF (379/774 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH™ RISC engine Family

Section 9 Multi-Function Timer Pulse Unit 2 (MTU2)
Operation when Error Occurs during PWM Mode 1 Operation, and Operation is Restarted
in PWM Mode 2: Figure 9.132 shows an explanatory diagram of the case where an error occurs
in PWM mode 1 and operation is restarted in PWM mode 2 after re-setting.
1
2
3
RESET TMDR TOER
(PWM1) (1)
MTU2 module output
TIOC*A
4
5
6
TIOR PFC TSTR
(1 init (MTU2) (1)
0 out)
7
Match
8
9
10 11 12
Error PFC TSTR TMDR TIOR
occurs (PORT) (0) (PWM2) (1 init
0 out)
13
PFC
(MTU2)
14
TSTR
(1)
Not initialized (cycle register)
TIOC*B
Not initialized (TIOC*B)
Port output
PEn
High-Z
PEn
High-Z
n = 0 to 15
Figure 9.132 Error Occurrence in PWM Mode 1, Recovery in PWM Mode 2
1 to 10 are the same as in figure 9.130.
11. Set PWM mode 2.
12. Initialize the pins with TIOR. (In PWM mode 2, the cycle register pins are not initialized.)
13. Set MTU2 output with the PFC.
14. Operation is restarted by TSTR.
Note: PWM mode 2 can only be set for channels 0 to 2, and therefore TOER setting is not
necessary.
Rev. 4.00 Jul. 25, 2008 Page 359 of 750
REJ09B0243-0400