SH7137 Datasheet, PDF (484/1160 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 Phase Counting Mode: Figure 10.139 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.
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
8
9
10
Match Error PFC TSTR
occurs (PORT) (0)
11
TMDR
(PCM)
12
13
14
TIOR PFC TSTR
(1 init (MTU2) (1)
0 out)
TIOC*B
Port output
PEn
High-Z
PEn
High-Z
n = 0 to 15
Figure 10.139 Error Occurrence in Normal Mode, Recovery in Phase Counting Mode
1 to 10 are the same as in figure 10.136.
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. 2.00 Sep. 10, 2008 Page 458 of 1130
REJ09B0402-0200