ADLINK PCI-7300A - Manual (Page 13)

Introduction 1
1 Introduction
The cPCI/PCI-7300A is cPCI/PCI form factor ultra-high speed dig-
ital 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 applica-
tions.
The cPCI/PCI-7300A performs high-speed data transfers using
bus mastering DMA and scatter/gather via 32-bit PCI bus architec-
ture. The maximum data transfer rates can be up to 80MB per
second. It is very suitable for interface between high speed periph-
erals 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 config-
ure as either input or output, and 8-bit or 16-bit. According to out-
side 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 trans-
fer.
4. Pattern Generation: You can output a digital pattern
repeatedly at a predetermined rate. The transfer rate is
controlled by internal timer.