Measurement-computing PCI-DAS6013 Manual de usuario descargar pdf (Pagina 37)

PCI-DAS6013 and PCI-DAS6014 User's Guide Specifications

Configurable AUXIN<5:0>, AUXOUT<2:0> external trigger/clocks

The PCI-DAS6013 and PCI-DAS6014 provide nine user-configurable trigger/clock pins available at the

100-pin I/O connector. Of these, six are configurable as inputs while three are configurable as outputs.

AUXIN<5:0> sources (software

selectable)

A/D CONVERT: External ADC convert strobe

A/D TIMEBASE IN: External ADC pacer timebase

A/D START TRIGGER: ADC Start Trigger

A/D STOP TRIGGER: ADC Stop Trigger

A/D PACER GATE: External ADC gate

D/A START TRIGGER: DAC trigger/gate

D/A UPDATE: DAC update strobe

D/A TIMEBASE IN: External DAC pacer timebase

AUXOUT<2:0> sources

(software selectable)

STARTSCAN: A pulse indicating start of conversion

SSH: Active signal that terminates at the start of the

last conversion in a scan.

A/D STOP: Indicates end of scan

A/D CONVERT: ADC convert pulse

SCANCLK: Delayed version of ADC convert

CTR1 CLK CTR1 clock source

D/A UPDATE: D/A update pulse

CTR2 CLK: CTR2 clock source

A/D START TRIGGER: ADC Start Trigger Out

A/D STOP TRIGGER: ADC Stop Trigger Out

D/A START TRIGGER: DAC Start Trigger Out

Default selections

AUXIN0: A/D CONVERT

AUXIN1: A/D START TRIGGER

AUXIN2: A/D STOP TRIGGER

AUXIN3: D/A UPDATE

AUXIN4: D/A START TRIGGER

AUXIN5: A/D PACER GATE

AUXOUT0: D/A UPDATE

AUXOUT1: A/D CONVERT

AUXOUT2: SCANCLK

Compatibility

5V/TTL

Edge-sensitive polarity

Rising/falling, software selectable

Level-sensitive polarity

Active high/active low, software selectable

Minimum input pulse width

37.5 ns

1 2 ... 32 33 34 35 36 37 38 39 40 41 42

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