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FMC DIO 5ch TTL a
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Opened Jan 23, 2018 by Piotr Miedzik@qermit
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IC11 separation

FMC Carrier should read EEPROM and check/validate module before enabling 12P0V, 3P3V and VADJ.

Therefore IC11 should not be connected directly to Management (I2C, GA0, GA1).
PCA9306 like buffers are required.

IC11 is a DAC5578SRGE directly connected to (I2C, GA0, GA1), while it is powered by P3V3 that may not be present.
See page 5 of https://edms.cern.ch/ui/file/1250230/1/EDA-02408-V2-0_sch.pdf

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Reference: project/fmc-dio-5chttla#3