Interfacing with the ISD4003

[mister_e]

You may need to use RAC and INT pin, then use SETPLAY and/or MC command. Datasheet is not really extensive about the explanation of it.

[lerameur]

RAC pin ?? Row address clock
these datasheet do a poor job of explanation.

I saw RINT for read interrupt, is this what you meant for INT ?

[mister_e]

No i meant INT & RAC pin
http://www.winbond-usa.com/products/...4003Rev1.0.pdf

And yeah their datasheet do bad job... but i saw worst.

Maybe these one may clear up few things
http://www.winbond-usa.com/products/...iefs/an_5a.pdf
http://www.winbond-usa.com/products/...riefs/an_7.pdf

[lerameur]

I think I am almost there.
I am checking the program and the ISD4003 datasheet. there is one last thing I am confused about. It is the following lines in the spi_send section in this thread:
http://www.picbasic.co.uk/forum/show...hlight=isd4003

isd_data_out = address REV 16
isd_data_in = isd_data_in REV 16 ' Reverse the bits of incoming data (received LSB first)

I do not understand why we need to reverse ..

ken

[mister_e]

Because this example used the MSSP instead of SHIFTIN/SHIFTOUT + their modifier.

AND this is unfortunately how those ISD works.

[lerameur]

I read over and over again the spec sheet "Application notes 5A" (read the example #3)
http://www.winbond-usa.com/products/...iefs/an_5a.pdf

I am not seeing the code SSPBUF anywhere, the code:
http://www.melabs.com/resources/samp...BP/voicext.bas
is not initialzing that variable either. What is SSPBUF, I did not see it in the PBP manual.... Ok seeing it in the pic16F876 datasheet..

k