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Scroll Title
anchorTable_OBP_Oscillators
titleClock sources overview

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Clock SourceSchematic NameFrequencyClock Input DestinationNotes
Microchip MEMS Oscillator DSC6011ME2A, U7CLK12M12.0000MHzFTDI FT2232 U3, pin 3; FPGA SoC bank 2, pin H6-
Adjustable Oscillator LTC1799CS5, U10OSC_CLK8.33MHz / 833.33KHz / 83.33KHzFPGA SoC bank 2, pin G5

Frequency is set with signal 'OSC_DIV', which is tied
to FPGA bank 5, pin H9.

Following settings are available:

FPGA pin H9 ('OSC_DIV') open drain: 8.33MHz
FPGA pin H9 ('OSC_DIV') open drainfloating: 833.33KHz
FPGA pin H9 ('OSC_DIV') pulled to 3.3V: 83.33KHz

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