Genie NI 5421 User Manual download pdf (Page 27)

Waveform and Instruction Memory Utilization

Table 10.

Specification Valu e Comments

Memory Usage The NI 5421 uses the Synchronization and Memory Core

(SMC) technology in which waveforms and instructions

share onboard memory. Parameters, such as number of

segments in sequence list, maximum number of waveforms

in memory, and number of samples available for waveform

storage, are flexible and user defined.

For more

information,

refer to NI Signal

Generators

Help»

Programming»

NI-TClk

Synchronization

Help.

Onboard

Memory Size

8 MB standard:

8,388,608 bytes

32 MB option:

33,554,432 bytes

256 MB option:

268,435,456 bytes

—

Output Modes Arbitrary Waveform mode and Arbitrary Sequence mode —

Arbitrary

Waveform

Mode

In Arbitrary Waveform mode, a single waveform is selected

from the set of waveforms stored in onboard memory and

generated.

—

Arbitrary

Sequence

Mode

In Arbitrary Sequence mode, a sequence directs the NI 5421

to generate a set of waveforms in a specific order. Elements

of the sequence are referred to as segments. Each segment is

associated with a set of instructions. The instructions

identify which waveform is selected from the set of

waveforms in memory, how many loops (iterations) of the

waveform are generated, and at which sample in the

waveform a marker output signal is sent.

—

Minimum

Waveform Size

(Samples)

Trigger Mode

Arbitrary

Waveform Mode

Arbitrary

Sequence Mode

The Minimum

Waveform Size

is sample rate

dependent in

Arbitrary

Sequence Mode.

Single 16 16

Continuous 16 96 @ >50 MS/s

32 @ ≤50 MS/s

Stepped 32 96 @ >50 MS/s

32 @ ≤50 MS/s

Burst 16 512 @ >50 MS/s

256 @ ≤ 50 MS/s

1 2 ... 22 23 24 25 26 27 28 29 30 31 32 ... 35 36

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Genie NI 5421 User Manual Page 27

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