SH7125_08 Datasheet, PDF (374/774 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 Normal Mode Operation, and Operation is Restarted
in Phase Counting Mode: Figure 9.127 shows an explanatory diagram of the case where an error
occurs in normal mode and operation is restarted in phase counting mode after re-setting.
1
2
3
RESET TMDR TOER
(normal) (1)
4
5
6
TIOR PFC TSTR
(1 init (MTU2) (1)
0 out)
7
8
9
10 11
Match Error PFC TSTR TMDR
occurs (PORT) (0) (PCM)
12 13 14
TIOR PFC TSTR
(1 init (MTU2) (1)
0 out)
MTU2 module output
TIOC*A
TIOC*B
Port output
PEn
High-Z
PEn
High-Z
n = 0 to 15
Figure 9.127 Error Occurrence in Normal Mode, Recovery in Phase Counting Mode
1 to 10 are the same as in figure 9.124.
11. Set phase counting mode.
12. Initialize the pins with TIOR.
13. Set MTU2 output with the PFC.
14. Operation is restarted by TSTR.
Note: Phase counting mode can only be set for channels 1 and 2, and therefore TOER setting is
not necessary.
Rev. 4.00 Jul. 25, 2008 Page 354 of 750
REJ09B0243-0400