Kontron PCI-AOB16/12, Руководство пользователя

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Features 1-3 PCI-AOB8/12 (16/12) User’s Guide
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Features
J 8 or 16 channels of analog output, 12 bits resolution
J 24 digital I/O lines buffered on the card
J Digital I/O buffers can be tri-stated under program control
J Four and 8-bit ports independently selectable for input or output
J Pull-ups on digital I/O lines
J Resettable fused +5V supply available to the user
J Three 16-bit 1MHz down-counters, can generate interrupts to clock DACs
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Description
The PCI-AOB8/12 (16/12) are full-size cards that can be installed in any long PCI slot of PC-AT
class computers. They contain either eight or sixteen double-buffered digital-to-analog
converters (DACs) that provide independent analog output channels of 12-bit resolution. Each
analog output channel can be configured for ranges of:
0V to +2.5V
0V to +5V
0V to +10V
-2.5V to +2.5V
-5V to +5V
-10V to +10V
4mA to 20mA sink
The analog output channels have a double-buffered input for single-step update and each is
addressed at its own I/O location. Type AD7237 double-buffered, dual, DAC chips are used. Data
are transferred into outer registers a byte at a time and then transferred into inner registers a
word at a time. The analog outputs can be updated either independently, simultaneously by
command, or simultaneously by timer.