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UCD9081: .HEX file details

Part Number: UCD9081

Tool/software:

Hi Team,

My customer is using SLVA275B to check the UCD9081 .hex file. They want use I2C to update the firmware.

3 questions need your help, which is not contain in app notes.

1. For every line below, what's the function of :20   at every start?

2. For every line below,  what's the function of 1 byte at every end? eg. for first line, what does the green 1E means?

3. what does the last line :00000001FF means?