SH7146 Datasheet, PDF (507/1022 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer SuperH™ RISC engine Family

Section 10 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 10.144 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 14
PFC TSTR
(MTU2) (1)
Not initialized (cycle register)
TIOC*B
Not initialized (TIOC*B)
Port output
PEn
High-Z
PEn
High-Z
n = 0 to 15
Figure 10.144 Error Occurrence in PWM Mode 1, Recovery in PWM Mode 2
1 to 10 are the same as in figure 10.142.
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. 3.00 May 17, 2007 Page 463 of 974
REJ09B0229-0300