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CHAPTER 6 16-BIT TIMER/EVENT COUNTER 0
User’s Manual U15798EJ2V0UD
(4) Capture register data retention timings
If the valid edge of the TI00/P35 pin is input during 16-bit timer capture/compare register 01 (CR01) read, CR01
carries out a capture operation but the read value at this time is not guaranteed. However, the interrupt request
signal (INTTM01) is generated upon detection of the valid edge.
Figure 6-30. Capture Register Data Retention Timing
Count clock
TM0 count
Edge input
INTTM01
Capture read signal
CR01 captured value
N
N + 1
N + 2
M
M + 1
M + 2
X
N + 1
Capture operation is performed
but the read value is not
guaranteed.
Capture
M + 1
(5) Valid edge setting
Set the valid edge of the TI00/P35 pin after setting bits 2 and 3 (TMC02 and TMC03) of 16-bit timer mode control
register 0 (TMC0) to 0, 0, respectively, and then stopping timer operation. The valid edge is set with bits 4 and
5 (ES00 and ES01) of prescaler mode register 0 (PRM0).
Содержание mPD780344 Series
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