HD6417641 RENESAS [Renesas Technology Corp], HD6417641 Datasheet - Page 710
HD6417641
Manufacturer Part Number
HD6417641
Description
Manufacturer
RENESAS [Renesas Technology Corp]
Datasheet
1.HD6417641.pdf
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Section 18 Multi-Function Timer Pulse Unit (MTU)
(17) Operation when Error Occurs during Phase Counting Mode Operation, and Operation
Figure 18.101 shows an explanatory diagram of the case where an error occurs in phase counting
mode and operation is restarted in normal mode after re-setting.
1. After a reset, MTU output is low and ports are in the high-impedance state.
2. Set phase counting mode.
3.
4. Set MTU output with the PFC.
5. The count operation is started by TSTR.
6. Output goes low on compare-match occurrence.
7. An error occurs.
8. Set port output with the PFC and output the inverse of the active level.
9. The count operation is stopped by TSTR.
10. Set in normal mode.
11. Initialize the pins with TIOR.
12. Set MTU output with the PFC.
13. Operation is restarted by TSTR.
Rev. 4.00 Sep. 14, 2005 Page 660 of 982
REJ09B0023-0400
TIOC*A/PTE[n]
TIOC*B/PTE[n]
MTU module
Figure 18.101 Error Occurrence in Phase Counting Mode, Recovery in Normal Mode
compare-match occurrence.)
Port output
n = 0 to 15
Initialize the pins with TIOR. (The example shows initial high output, with low output on
is Restarted in Normal Mode
TIOC*A
TIOC*B
output
RESET
1
TMDR
(PCM)
2
High-Z
High-Z
(1 init
0 out)
TIOR
3
(MTU)
PFC
4
TSTR
(1)
5
Match
6
occurs
Error
7
(PORT)
PFC
8
TSTR
(0)
9
(normal)
TMDR
10
0 out)
TIOR
(1 init
11
(MTU)
PFC
12
TSTR
13
(1)
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