CH Tech Pulse Generator - Manual (Page 17)

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3.5.2 Pulse Configuration Registers
Pulse Repetition Interval Register (08) This read/write register controls the pulse repetition
interval and the state of the output relay. See Figure 6 for details.
08 PRI Register
Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Write OEN Range Not Used PRI Multiplier
Read OEN Range Not Used PRI Multiplier
OEN

Output Relay Enable (1 = enabled/output on)
Range

PRI & Delay Range bit 14 13 12
0 0 0 25 ns
0 0 1 100 ns
0 1 0 1

s
0 1 1 10

s
1 0 0 100

s
1 0 1 1 ms
1 1 X invalid
PRI Multiplier

PRI Multiplier (period = PRI Multiplier

Range)
NOTES:
1) The Range field is used for both the PRI and Delay time settings.
2) The minimum programmable period is 100 nsec. Therefore the minimum PRI
Multiplier is 4 in the 25 nsec range, and 2 for all other ranges.
3) The maximum PRI Multiplier is 1023; therefore, the maximum programmable period
is 1.023 sec.
4) For highest accuracy use the smallest range with a larger multiplier.
Figure 6. PRI Register