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Why can not ADV7842 AFE register write but can read?

Question asked by Longz on Jul 21, 2017
Latest reply on Aug 9, 2017 by Longz

ADV7842 AFE register can not be write but can be read, why? Example,

Write:

0x4c,0xc,0x1f
0x4c,0x12,0x63
0x4c,0x0,0x80
0x4c,0x2,0x0
0x4c,0xc8,0x25

read(all is default):

0x4c,0xc,0xd //it's wrong
0x4c0x12,0xff  //it's wrong
0x4c,0x0,0xf  //it's wrong
0x4c0x2,0x0  // it's wrong
0x4c,0xc8,0x25 // it's right

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