ADM-PCIE-9V8 User Manual
3.2.1 LMK61E2
The ADM-PA120 uses the LMK61E2 for arbitrary clock frequency synthesis. For complete technical details,
please reference the datasheet:
https://www.ti.com/lit/ds/symlink/lmk61e2.pdf
The ADM-PA120 uses two LMK61E2 devices in the clock architecture. These can be accessed through either the
USB or PCIe link using the AVR2UTIL application. See additional details on avr2util in the section:
To re-program the LMK61E2 in a non-volatile manner, issue the following command:
avr2util <other options> setclknv-regmap <clock#> <reg. map file>
Note:
Each LMK61E2 is rated for only 100 non-volatile write operations.
To re-program the LMK61E2 in a volatile manner, issue the following command:
avr2util <other options> setclk-regmap <clock#> <reg. map file>
<other options> should be left blank for PCIE, and '-usbcom' for USB.
<clock#> is 0 for MGT_PROGCLK and 1 for MEM_CLK.
<reg. map file> is a text file generated using the "LMK61xx Oscillator Programming Tool — SNAC074.ZIP" which
can be obtained with a TI login from this page:
installed, launch the application, type in the desired frequency, select "LVDS" output standard, click "Generate
Configuration", then go to "File->Export hex register values"
Functional Description
ad-ug-1467_v1_0.pdf
https://www.ti.com/tool/LMK61E2EVM
Figure 8 : LMK61xx Oscillator Programming Tool GUI
USB
Interface.
. After you have the tool
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