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Chapter 10
Timer
Preliminary User’s Manual U15839EE1V0UM00
(4)
Timing
The delay of each timer output TOGnm (m = 1 to 4) varies according to the setting of the count
clock with the CSEx2 to CSEx0 bits (x = 0, 1).
In capture operation 3 to 4 periods of the count-clock (f
COUNT
) signal are required from the TIGny
pin (y = 0 to 5) until a capture interrupt is output.
when TMGxE (x = 0, 1) is set earlier or simultaneously with POWER bit, than the Timer Gn needs
7 peripheral clocks periods (f
PCLK
) to start counting.
when TMGxE (x = 0, 1) is set later than POWER bit, than the Timer Gn needs 4 peripheral clocks
periods (f
PCLK
) to start counting.
When a capture register (GCCny) is read, the capturing is disable during read operation. This is
intended to prevent undefined data during reading. So, if a contention occurs between an external
trigger signal and the read operation, capture operation may be cancelled, and old data may be
read.
GCCnm register (m = 1 to 4) in Compare mode:
After setting the POWER bit you have to wait for 10 peripheral clocks periods (f
PCLK
) to perform
write access to the GCCnm register (m = 1 to 4).
To perform successive write access during operation, for rewriting the GCCnm register (n = 1 to 4),
you have to wait for minimum 7f peripheral clocks periods (f
PCLK
).
Содержание mPD703128
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