10
10-197
Ver.0.10
MULTIJUNCTION TIMERS
10.8 TOD (Output-related 16-bit Timer)
10.8.11 Operation in TOD Single-shot Output Mode (without Correction Function)
(1) Outline of TOD single-shot output mode
In single-shot output mode, the timer generates a pulse in width of (reload 0 register set value +
1) only once and stops without performing any operation.
When after setting the reload 0 register, the timer is enabled (by writing to the enable bit in
software or by TID1 underflow/overflow signal), it loads the content of reload 0 register into the
counter synchronously with the count clock, letting the counter start counting. The counter counts
down clock pulses and stops when it underflows after reaching the minimum count.
The F/F output waveform in single-shot output mode is inverted (F/F output levels change from
low to high, or vice versa) at startup and upon underflow, generating a single-shot pulse
waveform in width of (reload 0 register set value + 1) only once. Also, an interrupt can be
generated when the counter underflows.
The count value is (reload 0 register set value + 1). (For details about count operation, also refer
to Section 10.3.11, "Operation in TOP Single-shot Output Mode (with Correction Function)."
(2) Precautions to be observed when using TOD single-shot output mode
The following describes precautions to be observed when using TOD single-shot output mode.
• If the counter stops due to underflow in the same clock period as the timer is enabled by
external input, the former has priority (so that the counter stops).
• If the counter stops due to underflow in the same clock period as count is enabled by writing to
the enable bit, the latter has priority (so that countis enabled).
• If the timer is enabled by external input in the same clock period as count is disabled by writing
to the enable bit, the latter has priority (so that count is disabled).
• Because the internal circuit operation is synchronized to the count clock (prescaler output), a
finite time equal to a prescaler delay is included before F/F starts operating after the timer is
enabled.
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 ...