ADLINK cPCI-7300 - Manual (Page 9)

Introduction
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Introduction
The cPCI/PCI-7300A is cPCI/PCI form factor ultra-high speed digital I/O card,
it consists of 32 digital input 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 cPCI/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 80MB per second. It is very suitable for interface
between high speed peripherals and your computer system.
The cPCI/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 cPCI/PCI-7300A to meet all high speed digital I/O data transfer.
There are 4 different digital I/O operation modes are supported:
1. Internal Clock: the digital input and output operations are paced by
internal clock and transferred by bus mastering DMA.
2. External Clock: the digital input operation is paced by external strobe
signal ( DIREQ ) and transferred by bus mastering DMA.
3. Handshaking: through REQ signal and ACK signal, the digital I/O
data can have simple handshaking data transfer.
4. Pattern Generation: You can output a digital pattern repeatedly at a
predetermined rate. The transfer rate is controlled by internal timer.