Xtium2-CXP PX8 User's Manual
Overview
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ACUPlus: Acquisition Control Unit
ACUPlus consists of a grab controller, one pixel packer and one time base generator per camera
input.
ACUPlus acquires variable frame sizes up to 64KB per horizontal line and up to 64K lines per frame.
ACUPlus can also capture an infinite number of lines from a line scan camera without losing a
single line of data.
DTE: Intelligent Data Transfer Engine
The Xtium2-CXP PX8 intelligent Data Transfer Engine ensures fast image data transfers between
the board and the host computer with zero CPU usage. The DTE provides a high degree of data
integrity during continuous image acquisition in a non-real time operating system like Windows.
DTE consists of intelligent DMA units with auto-loading Scatter-Gather tables.
PCI Express x8 Gen3 Interface
The Xtium2-CXP PX8 is a universal PCI Express x8 Gen3 board, compliant with the PCI Express 3.0
specification. The Xtium2-CXP PX8 board achieves transfer rates up to 7.0Gbytes/sec. to host
memory. Note that performance can be lower depending on PC and/or programmed configuration.
The Xtium2-CXP PX8 board occupies one PCI Express x8 Gen3 expansion slot and one chassis
opening.
Important:
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To obtain the maximum transfer rate to host memory, make sure the Xtium2-CXP PX8 is in a
computer with a Gen3 slot. The board will work in a Gen1 or Gen2 slot, but only with a quarter
or half the possible transfer performance respectively.
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The system motherboard BIOS should allow setting the PCIe maximum payload size to 256 or
higher. Systems with fixed settings of 128 will limit performance for transfers to host memory.
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If the computer only has a PCI Express x16 slot, test directly (use the supplied diagnostic tool)
or review the computer documentation to know if the Xtium2-CXP PX8 is supported. Computer
motherboards may only support x16 graphic video board products in x16 slots.
Advanced Controls Overview
Visual Indicators
Xtium2-CXP PX8 features up to 5 LED indicators to facilitate system installation and setup
(see Status LEDs Functional Descriptions). These indicators provide visual feedback on the board
status and camera status.
External Event Synchronization
Trigger inputs and strobe signals precisely synchronize image captures with external events.
CoaXPress Communication Port
One Sapera LT Acquisition Device per camera input provides access to the CoaXPress camera
configuration via the board device driver. The communication port presents a seamless interface to
access GenICam camera features.
Quadrature Shaft Encoder
An important feature for web scanning applications, the Quadrature Shaft Encoder inputs allow
synchronized line captures from external web encoders (see J7- I/O Connector or Cable
assemblies for I/O connector J8). The Xtium2-CXP PX8 provides a TTL or RS-422 input (mutually
exclusive) that supports a maximum 5 MHz tick rate.
