10
10-129
Ver.0.10
MULTIJUNCTION TIMERS
10.4 TIO (Input/Output-related 16-bit Timer)
10.4.10 Operation in TIO Noise Processing Input Mode
In noise processing input mode, the timer detects the status of an input signal that it remained in the
same state for over a predetermined time.
In noise processing input mode, the counter is started by entering a high or low-level signal from an
external device and if the signal remains in the same state for over a predetermined time before the
counter underflows, the counter stops after generating an interrupt. If the valid-level signal being
applied turns to an invalid level before the counter underflows, the counter temporarily stops
counting and when a valid-level signal is entered again, it is reloaded with the initial count and
restarts counting. The valid count value is (reload 0 register set value + 1).
The timer stops at the same time the counter underflows or count is disabled by writing to the
enable bit.
An interrupt can be generated by a counter underflow.
Figure 10.4.10 Typical Operation in Noise Processing Input Mode
H'FFFF
H'0000
Enabled
(by writing to enable bit
or by external input)
Reload 0 register
H'A000
External input
(noise processing)
H'A000
Valid signal width
Invalid
Invalid
Disabled
by underflow
Count clock
Counter
TIO interrupt
Enable bit
Note: This diagram does not show detail timing information.
TIO interrupt by
underflow
Summary of Contents for M32170F3VFP
Page 42: ...1 1 24 Ver 0 10 OVERVIEW 1 4 Pin Layout This is a blank page ...
Page 56: ...2 2 14 Ver 0 10 This is a blank page ...
Page 88: ...3 3 32 Ver 0 10 ADDRESS SPACE 3 7 Notes on Address Space This is a blank page ...
Page 270: ...9 9 40 Ver 0 10 DMAC 9 4 Precautions about the DMAC This is a blank page ...
Page 614: ...12 12 64 Ver 0 10 This is a blank page SERIAL I O 12 9 Precautions on Using UART Mode ...
Page 756: ...17 17 10 Ver 0 10 RAM BACKUP MODE 17 4 Exiting RAM Backup Mode Wakeup This is a blank page ...
Page 762: ...18 18 6 Ver 0 10 OSCILLATION CIRCUIT 18 2 Clock Generator Circuit This is a blank page ...
Page 831: ...CHAPTER 22 CHAPTER 22 TYPICAL CHARACTERISTICS 22 1 A D Conversion Characteristics ...
Page 833: ...Appendix 1 1 Dimensional Outline Drawing APPENDIX 1 APPENDIX 1 MECHANICAL SPECIFICATIONS ...
Page 841: ...Appendix 3 1 Precautions about Noise APPENDIX 3 APPENDIX 3 PRECAUTIONS ABOUT NOISE ...