SH7146 Datasheet, PDF (501/1022 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 Normal Mode Operation, and Operation is Restarted
in PWM Mode 2: Figure 10.138 shows an explanatory diagram of the case where an error occurs
in normal mode and operation is restarted in PWM mode 2 after re-setting.
MTU2 module output
TIOC*A
1
2
3
RESET TMDR TOER
(normal) (1)
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
Port output
PEn
High-Z
PEn
High-Z
n = 0 to 15
Figure 10.138 Error Occurrence in Normal Mode, Recovery in PWM Mode 2
1 to 10 are the same as in figure 10.136.
11. Set PWM mode 2.
12. Initialize the pins with TIOR. (In PWM mode 2, the cycle register pins are not initialized. If
initialization is required, initialize in normal mode, then switch to PWM mode 2.)
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 457 of 974
REJ09B0229-0300