The PCI-7300A is PCI form factor ultra-high speed digital I/O card; it consists of 32 digital input and/or output channel. High performance designs and the state-of-the-art technology make this card to be ideal for high-speed digital input and output applications.
The PCI-7300A performs high-speed data transfers using bus mastering DMA and scatter gather via 32-bit PCI bus architecture. The maximum data transfer rates can be up to 40MB per second. PCI bus greatly extends data throughput up to 132M bytes/sec and also has provisions for processor-free DMA (direct memory access). While the PCI-7300A becomes the bus master, it takes control of the PCI bus, transfers data at burst speed, then releases the bus for other peripheral use.
For bus master devices, this says that the hardware has some sort of built-in support for transferring data to and from noncontiguous ranged of physical memory. The PCI-7300A contains multiple pairs of address and length registers, each one describing a single contiguous buffer segment. This allows PCI-7300A to perform I/O using buffers that are scattered throughout DMA address space. These multiple address and count registers are often referred to as a scatter/gather list, but you can also think of these bus masters as having their own built-in mapping registers.
The PCI-7300A is configured as two ports, PORTA and PORTB; each port controls 16 digital I/O lines. The I/O can configure as either input or output, and 8-bit or 16-bit. According to outside device environment, users can configure PCI-7300A to meet all high-speed digital I/O data transferring. PCI-7300A can support many different digital I/O operation modes:
Internal Clock: the digital input and output operations are handled by internal clock and transferred by bus mastering DMA.
External Trigger: the digital input and output operations are handled by external In/Out strobe signal (DI_REQ and DO_ACK) and transferred by bus mastering DMA.
Handshaking: through REQ input signal and ACK output signal, the digital I/O data can have simple handshaking data transfer.
Pattern Generation: reading or writing digital data a predetermined rate. Users can control this rate internally by on-board counters with timing resolution 50 ns.
Applications
Digital I/O (DIO)
Auxiliary Digital I/O
Programmable Counter
Transfer Characteristic
General Specifications
· DIN-100S · DIN-502S
Pin Assignment of 100-pin connector
| Cat No. | Description | Price |
| PCI-7300A | Ultra-High Speed, 32-CH Digital I/O Card | $995.00 |
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