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16 Chapter 1: Introduction
Memory controller
Matrox Oasis includes a very efficient main memory controller for managing the
DDR 128-bit wide interface to on-board main memory (DDR SDRAM).
Operating at 167 MHz, the DDR SDRAM memory and controller combine to
deliver a memory bandwidth in excess of 5 Gbytes/sec. This memory bandwidth
allows Matrox Helios to comfortably handle demanding video I/O while
maintaining PA performance.
Main memory
Matrox Helios supports up to 1 Gbyte of linearly addressable, DDR SDRAM
main memory (also referred to as processing memory), which is accessed through
Matrox Oasis. Main memory holds image and post-processing result data.
Additional functionality
In addition to the core video capture and preprocessing capabilities, Matrox Helios
incorporates a variety of features to simplify overall system integration. These
features include:
• Auxiliary, multi-purpose signals, that can be programmed for trigger input, field
polarity input, timer clock input, user-defined input, exposure output, or
user-define output, depending on the signal. Matrox Helios eCL/XCL supports
up to 18 (depending on the version), Matrox Helios eA/XA supports up to 28,
and Matrox Helios eD/XD supports 44 auxiliary signals. For more information
on signals, see Appendix B: Technical information.
• LVDS or RS-232 compatible serial interfaces (the number depends on the type
and version of Matrox Helios). Each interface is mapped as a COM port so that
it can be accessed through the Win32 API. The serial interface can both receive
and transmit signals, in full-duplex mode.
• Hardware facilities for implementing custom software-based motion detection.
• An integrated Watchdog timer
system failure.
• An internal video generator for troubleshooting both installation and operation.
1. Starting from revision 1 of the Matrox Helios XCL PCB; whereas, present on the
Matrox Helios XA PCB as of revision 0.
1
for automatically recovering from application or
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