SH7125_08 Datasheet, PDF (397/774 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 Reset-Synchronized PWM Mode Operation, and
Operation is Restarted in PWM Mode 1: Figure 9.150 shows an explanatory diagram of the
case where an error occurs in reset-synchronized PWM mode and operation is restarted in PWM
mode 1 after re-setting.
MTU2 module output
1
2
3
4
5
6
RESET TOCR TMDR TOER PFC TSTR
(RPWM) (1) (MTU2) (1)
7
8
9
10
11
12
13
14
Match Error PFC TSTR TMDR TIOR PFC TSTR
occurs (PORT) (0) (PWM1) (1 init (MTU2) (1)
0 out)
TIOC3A
TIOC3B
Not initialized (TIOC3B)
TIOC3D
Not initialized (TIOC3D)
Port output
PE8
PE9
High-Z
High-Z
PE11
High-Z
Figure 9.150 Error Occurrence in Reset-Synchronized PWM Mode,
Recovery in PWM Mode 1
1 to 10 are the same as in figure 9.149.
11. Set PWM mode 1. (MTU2 positive phase output is low, and negative phase output is high.)
12. Initialize the pins with TIOR. (In PWM mode 1, the TIOC *B side is not initialized.)
13. Set MTU2 output with the PFC.
14. Operation is restarted by TSTR.
Rev. 4.00 Jul. 25, 2008 Page 377 of 750
REJ09B0243-0400