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PCMD3140: Ch3 and Ch4 does not working

Part Number: PCMD3140


Hi,

I am try to setup PCMD3140 on our board(IMX8MQ) with 4 PDM microphone input.

Currently, ASI output channel format as TDM mode and setup 4 channel input, ch1 and ch2 is working well, but ch3 and ch4 is not working.

I also according example on datasheet to setup configuration, but ch3 and ch4 still not working.

According DEV_STS0 Register(0x76), seem ch3 and ch4 power state is incorrect. 

Whole register information as below.

     0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f    0123456789abcdef
00: 00 00 81 00 00 05 00 04 00 00 00 00 01 02 03 00    ..?..?.?....???.
10: 00 00 00 02 48 44 10 10 04 20 02 08 00 00 02 40    ...?HD??? ??..?@
20: 00 00 41 00 00 00 00 00 00 00 00 54 00 00 00 00    ..A........T....
30: 00 00 00 ff 00 00 40 00 40 00 00 00 00 fc ff 80    ...?..@.@....???
40: 00 00 fc ff 80 00 00 00 ff 80 00 00 00 ff 80 00    ..???...??...??.
50: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
60: 00 00 00 00 00 00 00 00 00 00 00 01 40 7b 00 00    ...........?@{..
70: e7 00 00 f0 f0 e0 c0 e0 00 00 ff 00 ff ac 50 00    ?..?????..?.??P.
80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................

Regards,

Jay