SH7641 Datasheet, PDF (696/1036 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH™ RISC engine Family / SH7641 Series

Section 18 Multi-Function Timer Pulse Unit (MTU)
(3) Operation when Error Occurs during Normal Mode Operation, and Operation is
Restarted in PWM Mode 2
Figure 18.87 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
TIOC*B
Port output
TIOC*A/PTE[n]
TIOC*B/PTE[n]
n = 0 to 15
1
2
3
RESET TMDR TOER
(normal) (1)
4
5
6
TIOR PFC TSTR
(1 init (MTU) (1)
0 out)
7
8
9
10 11 12
Match Error PFC TSTR TMDR TIOR
occurs (PORT) (0) (PWM2) (1 init
0 out)
13 14
PFC TSTR
(MTU) (1)
• Not initialized (cycle register)
High-Z
High-Z
Figure 18.87 Error Occurrence in Normal Mode, Recovery in PWM Mode 2
1 to 10 are the same as in figure 18.85.
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 Sep. 14, 2005 Page 646 of 982
REJ09B0023-0400