SH7144_08 Datasheet, PDF (385/930 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer SuperHTM RISC engine Family/SH7144 Series

11. Multi-Function Timer Pulse Unit (MTU)
Operation when Error Occurs during Normal Mode Operation, and Operation is Restarted
in PWM Mode 2: Figure 11.87 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.
MTU module output
TIOC*A
1
2
3
RESET TMDR TOER
(normal) (1)
4
TIOR
(1 init
0 out)
5
6
PFC TSTR
(MTU) (1)
7
Match
8
9
10 11 12
Error PFC TSTR TMDR TIOR
occurs (PORT) (0) (PWM2) (1 init
0 out)
13
PFC
(MTU)
14
TSTR
(1)
Not initialized (cycle register)
TIOC*B
Port output
PEn
Hi-Z
PEn
Hi-Z
n=0 to 15
Figure 11.87 Error Occurrence in Normal Mode, Recovery in PWM Mode 2
1 to 10 are the same as in figure 11.85.
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 MTU 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 Mar. 27, 2008 Page 341 of 882
REJ09B0108-0400