National Instruments PCI-6533 Digital I/O Device

The NI PCI-6533 (Part Numbers: PCI-DIO-32HS and 777314-01) is a rapid, 32-bit, parallel, Digital I/O Device which can be installed in any open 5 V PCI expansion slot in a computer. This Digital I/O Device has the NI MITE PCI interface, which provides PCI burst transfers, high-speed DMA controllers for ongoing, scatter-gather DMA, and bus-master operation. This device does not contain any jumpers or switches. The NI PCI-6533 can be programmed with NI-DAQ Traditional (Legacy) or NI-DAQmx.

The NI PCI 6533 Digital I/O Device comes with 32 advanced I/O lines partitioned into four 8-bit ports. For design I/O or handshaking, the ports can be assembled into two 8-bit or 16-bit gatherings, or a solitary 32-bit gathering. Every channel has hysteresis and diode-based line termination on all inputs, start and stop trigger detection, a 16-sample-deep FIFO buffer, and a handshaking controller. Every I/O line is also 5 V TTL/CMOS compatible. When the channels are designed for yield, every line can sink or source up to 24 mA when set at logic low or high, separately.

This device can perform unstrobed I/O, which is simple digital I/O that does not entail hardware-controlled timing or handshaking. When performing static or unstrobed I/O, the user can exclusively design each of the 32 I/O lines on the NI PCI-6533 (DIO-32HS) as info or output. If only unstrobed I/O is performed, the device does not need status signals and handshaking control to transport timing data. The REQ and STOPTRIG lines can be utilized as additional information inputs, and the PCLK and ACK lines can be used as additional information outputs. The PCI-6533 can additionally perform strobed I/O, which monitors timing or performs handshaking functions. Since this device has two handshaking controllers, it can accomplish two strobed operations at the same time.