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DS26503DK
BASIC OPERATION
This design kit relies upon several supporting files, which are available for downloading on our website at
www.maxim-ic.com/telecom . See the DS26503DK QuickView data sheet for these files.
Hardware Configuration
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Supply 3.3V to the banana-plug receptacles marked GND and VCC_3.3V.
DIP switches are unused and can be in either the ON or OFF position with exception for the Flash
programming switch, which should be OFF.
From the Programs menu, launch the host application named ChipView.exe. Run the ChipView application. If
the default installation options were used, click the Start button on the Windows toolbar and select Programs →
ChipView → ChipView.
General
? Upon power-up the RLOS and RLOF LEDs (red) will be lit, the INT LED (red) will not be lit, and Status LED
(DS10 red/green bicolor) will be green.
Quick Setup (Register View)
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The PC will load ChipView offering a choice among DEMO MODE, REGISTER VIEW, and TERMINAL MODE.
Select Register View.
The program will then request a definition file. Select DS26503DC_FPGA.def. Through the ‘links’ section, this
will also load DS26503.def.
The Register View Screen will appear, showing the register names, acronyms, and values for the DS26503.
Predefined Register settings for several functions are available as initialization files.
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ini files are loaded by selecting the menu File → Reg ini File → Load ini File.
Load the ini file “CompositeClock.ini.”
Load the ini file “DS26502FPGA_2048Clks.ini,” which sets the DS26503 in Intel nonmultiplexed mode with
MCLK driven at 2.048MHz.
After loading the ini files the following may be observed:
? The RLOS and RLOF LEDs extinguishes upon external loopback.
? The part begins operating in composite clock mode.
Miscellaneous
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Clock frequencies and certain pin bias levels are provided by a register-mapped FPGA.
The definition file for this FPGA is named DS26503DC_FPGA.def. Table 2 shows the FPGA register
definitions. A drop-down menu on the top of the screen allows for switching between definition files.
All files referenced above are available for download as described in the section marked “BASIC
OPERATION.”
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