Appendix C - Global timer limits

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The GoLogic sequence provides a 32-bit global timer. The global timer must be between 1 and the maximum value for a 32-bit unsigned integer...

2^32 = 4,294,967,296

Time per sample = 1 / sampling frequency

Minimum global timer = 1 x time per sample

Maximum global timer = 4,294,967,296 x time per sample

The following table lists the available sampling frequencies, the time per sample, the minimum global timer, and maximum global timer...
 
Sampling   Timer   Minimum   Maximum
Frequency   resolution   timer   timer
                       
500 Hz   2   ms   2   ms   99.42   days
1 KHz   1   ms   1   ms   49.71   days
2 KHz   500   us   500   us   24.86   days
10 KHz   100   us   100   us   4.97   days
25 KHz   40   us   40   us   1.99   days
50 KHz   20   us   20   us   23.86   hours
100 KHz   10   us   10   us   11.93   hours
250 KHz   4   us   4   us   4.77   hours
500 KHz   2   us   2   us   2.39   hours
1 MHz   1   us   1   us   1.19   hours
2.5 MHz   400   ns   400   ns   28.63   minutes
5 MHz   200   ns   200   ns   14.32   minutes
12.5 MHz   80   ns   80   ns   5.73   minutes
25 MHz   40   ns   40   ns   2.86   minutes
50 MHz   20   ns   20   ns   1.43   minutes
125 MHz*   8   ns   8   ns   34.36   seconds
250 MHz   8   ns   8   ns   34.36   seconds
500 MHz   8   ns   8   ns   34.36   seconds
                         
* Timer uses this sampling rate during external clock mode.
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