ADLINK PCIe-7300A - Manual (Page 11)

Introduction 1
1 Introduction
The cPCI/PCI/PCIe-7300A is cPCI/PCI/PCI Express 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/PCIe-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/PCIe-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/PCIe-
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 mas-
tering 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.