PCM9211 Parity Error Detection_ coutinued

Hello Justin-san

Thank you for your reply.

I  had asked customer to wait your report by tomorrow.

Hearing from you tomorrow, thank you

Best Regards

Hi Kanji,

So during testing today we were able to get a parity error to send a pulse interrupt to both INT0 and MPIO_A0. To achieve this it was required that the parity process in register 0x23 be set to the default setting, which is going to mute the output when a parity error is detected. If it not in the mute setting the parity detect will not trigger a pulse on the output pins. Another note is that the parity error is NOT recorded as an error in register 0x2C. We are not sure why it can output a pulse for parity error but does not show up as a registered error in register 0x2C.

You can try this out with the scripts below.This is for Coax input, and optical output.

Enable parity error pulse on INT0:
w 80 60 00
w 80 34 00
w 80 25 02
w 80 2B 00
w 80 2E 44


To enable the output on MPIO_A0 add:
w 80 6E 0E
w 80 6F C0
w 80 72 04
w 80 7B 01

Justin

Hello Justin-san

Thank you for your test and the recommended setting for this.

I had informed your answer customer already, and I will inform you later about the customer's result.

PS

0x2B=00 for INT0?

( for the setting  the Parity error trigger to INT0 , 0x2A=00 should be correct, is not it?)

Also, Customer had been alerady tested with 0x23h= 04 ( default ),

but customer ( and I ) did not think about  the setting of 0x60h=00 before....is it key point?

With My Best Regards

Hello Justin-san

Thank you for your support
I had checked the trigger in case parity error using PCM9211EVM-U ( CodecControl.exe)
and AP2722 DIO.
I had parity error in the DIO panel of APWIN2700.

Result:

(A)
I can see ~100usec trigger pulse event by parity error for INT0, but I could not get every time.
( around 1time/2time missed) for Parity error using script(A) below.

.... waveform attached

(B)
Then I append script (B) in the command buffer window in the  CodecControl.
I can see ~200msec trigger pulse event by parity error fro MPIO_A0, but I could not
get every time ( around 1time/2time missed) .
 
Also , I expected MPIO_A0 and INT0 come simultaneous ( because I append script that ), but both
comes alternately.

Also ,MPIO _A0  comes  two case,
(1) Is before going to mute
(2)  before going to unmute

..... waveform attached

Script:
#(A) For INT0

w 80 23 04
w 80 60 00
w 80 34 00
w 80 25 02
w 80 2A 00
w 80 2B 00
w 80 2E 44
 
#(B) For MPIO_A0

w 80 6E 0E
w 80 6F C0
w 80 72 04
w 80 7B 01

Here is the question

Q1   If you have the picture when you had tested, would you please send it to me?  

       And also, I hope your whole .txt file in the CodecControl.exe.

Q2   Did you confirm  INT0 or MPIO_A0  pulse comes every time ( 100%) for parity error event?

      Is there any mistake/ something wrong  for my check?

with my best regards

INT0.TIF

MPIO_A0.TIF

Dear Justin san

I did not have your answer yet, but would you please advise?

My understanding is PCM9211 can detect Parity error ( muted automatically) ,

but hard to get  information from the ouput terminal.

Because, polling the output  or extenal latch(Flip Flop)  circuitis necessary

Please advise

Dear　Jusin-san

Thank you for your reply!

I will inform customer your comment, and please discard this question.

Thank you