3 timer duration – Samsung S3F401F User Manual

Page 44

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BASIC TIMER & WDT

S3F401F_UM_REV1.00

3-4

2.3 TIMER DURATION

2.3.1 Basic Timer Duration

The Basic Timer Counter, BTCNT, can be used to specify the time-out duration, and is a free-running 8-bit counter.
Please keep below table as reference for duration of timer.

Clock Source

Resolution

Interval Time

Fin = 4MHz

Fin / 2^5

8 us

2^5 * 2^8 / Fin = 2.048 ms

Fin = 4MHz

Fin / 2^6

16 us

2^6 * 2^8 / Fin = 4.098 ms

Fin = 4MHz

Fin / 2^10

256 us

2^10 * 2^8 / Fin = 65.536 ms

Fin = 4MHz

Fin / 2^12

1024 us

2^12 * 2^8 / Fin = 262.144 ms

Clock Source

Resolution

Interval Time

Fin = 6MHz

Fin / 2^5

5.33 us

2^5 * 2^8 / Fin = 1.364 ms

Fin = 6MHz

Fin / 2^6

10.66us

2^6 * 2^8 / Fin = 2.728 ms

Fin = 6MHz

Fin / 2^10

166.66 us

2^10 * 2^8 / Fin = 42.664 ms

Fin = 6MHz

Fin / 2^12

682.66 us

2^12 * 2^8 / Fin = 174.760 ms

Clock Source

Resolution

Interval Time

Fin = 8MHz

Fin / 2^5

4 us

2^5 * 2^8 / Fin = 1.024 ms

Fin = 8MHz

Fin / 2^6

8 us

2^6 * 2^8 / Fin = 2.048 ms

Fin = 8MHz

Fin / 2^10

128 us

2^10 * 2^8 / Fin = 32.768 ms

Fin = 8MHz

Fin / 2^12

512 us

2^12 * 2^8 / Fin = 131.072 ms

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