User`s guide

Introduction to the 34980A 1

Agilent 34980A Mainframe User’s Guide 17

Tota li z e r

The digital modules have 32- bit totalizer input channels for counting

pulses and measuring frequency. You can manually read the totalizer

count or you can configure a scan to read the count.

You can configure the totalizer to count on the rising edge or falling edge

of the input signal. The minimum rise/fall time for input signals to the

totalizer is 5

S.

The maximum count is 4,294,967,295 (2

- 1). The count rolls over to "0"

after reaching the maximum allowed value.

You can configure the totalizer to read without affecting the count or

reset the count to zero without losing any counts.

32 Bits

Count +

Count -

Gate

Totalizer