User manual

Chapter 3 Hardware Overview

control signals are input only and do not affect the operation of the DIO

lines.

Timing Signal Routing

The DAQ-STC chip provides a flexible interface for connecting timing

signals to other devices or external circuitry. The NI 6034E/6035E/6036E

uses the RTSI bus to interconnect timing signals between devices, and the

Programmable Function Input (PFI) pins on the I/O connector to connect

the device to external circuitry. These connections are designed to enable

the NI 6034E/6035E/6036E to both control and be controlled by other

devices and circuits.

The DAQ-STC has a total of 13 internal timing signals that can be

controlled by an external source. These timing signals can also be

controlled by signals generated internally to the DAQ-STC, and these

selections are fully software configurable. Figure 3-2 shows an example

of the signal routing multiplexer controlling the CONVERT* signal.

Figure 3-2. CONVERT* Signal Routing

RTSI Trigger<0..6>

PFI<0..9>

CONVERT*

Sample Interval Counter TC

GPCTR0_OUT

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