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10
10-146
MULTIJUNCTION TIMERS
10.7 TID (Input-Related 16-Bit Timer)
32180 Group User’s Manual (Rev.1.0)
(2) Event count mode
In event count mode, the timer uses an external input signal (TIN24, TIN26 or TIN28) as the clock source for
the counter.
Note: • TIN25, TIN27 and TIN29 cannot be used as the clock source for the counter.
By detecting the rising and falling edges of the external input signal (TIN24, TIN26 or TIN28), the timer
generates clock pulses synchronized to the microcomputer’s internal clock. When after setting the counter
the timer is enabled (by writing to the enable bit in software), the counter starts counting up from the set count
value synchronously with the generated clock. An interrupt request can be generated by a counter overflow.
To stop the counter, disable count by writing to the enable bit in software or fix the external input signal either
"high" or "low".
TIN24
(TIN26, TIN28)
Counter value
7FFF
8000
8001
8002
8003
8004
Figure 10.7.4 Typical Operation in TID Event Count Mode (Basic Operation)
Figure 10.7.5 Typical Operation in TID Event Count Mode (when Overflow Occurs)
TIN24
(TIN26, TIN28)
Counter value
FFFE
FFFF
0000
0001
0002
0003
TID interrupt request
due to overflow
FFFD
Содержание M32R/ECU Series
Страница 17: ...12 This page is blank for reasons of layout...
Страница 18: ...CHAPTER 1 OVERVIEW 1 1 Outline of the 32180 Group 1 2 Block Diagram 1 3 Pin Functions 1 4 Pin Assignments...
Страница 712: ...CHAPTER 18 OSCILLATOR CIRCUIT 18 1 Oscillator Circuit 18 2 Clock Generator Circuit...
Страница 794: ...CHAPTER 22 TYPICAL CHARACTERISTICS...
Страница 795: ...22 22 2 32180 Group User s Manual Rev 1 0 TYPICAL CHARACTERISTICS To be written at a later time...
Страница 796: ...APPENDIX 1 MECHANICAL SPECIFICAITONS Appendix 1 1 Dimensional Outline Drawing...
Страница 798: ...APPENDIX 2 INSTRUCTION PROCESSING TIME Appendix 2 1 32180 Instruction Processing Time...
Страница 802: ...APPENDIX 3 PROCESSING OF UNUSED PINS Appendix 3 1 Example Processing of Unused Pins...