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Introduction
The PCI-7200, cPCI-7200, and LPCI-7200S are PCI/CompactPCI/Low profile
PCI form factor high-speed digital I/O cards, consisting of 32 digital input
channels, and 32 digital output channels. High performance design and
state-of-the-art technology make this card suitable for high-speed digital input
and output applications.
The PCI-7200 performs high-speed data transfers using bus-mastering DMA
via the 32-bit PCI bus architecture. The maximum data transfer rates can be
up to 12MB per second—very suitable for interfacing high-speed peripherals
and your computer system.
Several different digital I/O operation modes are supported:
1. Direct Program Control:
the digital inputs and outputs can be accessed
and controlled by its corresponding I/O ports directly.
2. Timer Pacer Mode:
the digital input and output operations are handled by
internal timer pacer clock and transferred by bus mastering DMA.
3. External Clock Mode:
the digital input operations are handled by an
external input strobe signal (I_REQ) and transferred by bus mastering DMA.
4. Handshaking:
through the REQ and ACK signals, digital I/O data can utilize
simple handshaking data transfer.
1.1 Applications
Interface to high-speed peripherals
High-speed data transfers from other computers
Digital I/O control
Interface to external high-speed A/D and D/A converter
Digital pattern generator
Waveform and pulse generation
BCD interface driver