DAQ VXI-SC-1102 Manual de Instruções Página 60

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National Instruments Corporation 10-1 DAQ Hardware Overview Guide
10
DIO-32F and 6533
Digital I/O Devices
This chapter contains overview information on the DIO-32F and 6533
digital I/O devices, including the AT-DIO-32F, AT-DIO-32HS,
PCI-DIO-32HS, DAQCard-6533, and PXI-6533.
DIO-32F and 6533 Digital I/O Devices
The DIO-32F and 6533 provide 32 bits of bidirectional I/O, in addition to
extra input and output lines that differ from device to device.
The 32 bidirectional I/O lines are divided into four digital I/O ports of
eight bits each. The 8-bit digital I/O ports are labeled DIOA, DIOB, DIOC,
and DIOD. Refer to your device user manual for the locations of I/O lines
on the I/O connector. The Digital I/O functions refer to these ports, along
with the extra input and output ports, by the numbers from 0 to 4:
Port DIOA = port 0
Port DIOB = port 1
Port DIOC = port 2
Port DIOD = port 3
Extra inputs and extra outputs = port 4
An AT-DIO-32F provides two extra dedicated input lines and two extra
dedicated output lines. The extra inputs are labeled IN1 and IN2. The extra
outputs are labeled OUT1 and OUT2. Refer to your device user manual for
the locations of these lines on the I/O connector.
A 6533 provides up to four extra input and four extra output lines,
depending on the handshaking configuration you select. Any control lines
unused in your handshaking configuration are available as extra input and
output lines. You can use handshaking lines STOPTRIG1, STOPTRIG2,
REQ1, and REQ2 as extra inputs, in which case they functions as IN1
through IN4 lines. You can use handshaking lines PCLK1, PCLK2, ACK1
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