🚀 go-pugleaf

Can anyone tell me the ANSI standard reference number or some kind of
similar reference for the format of the digital data that comes out
of the RCA phono jack on the back of consumer CD players?
     An earlier reference to the Motorola documentation for the
56001 DSP was not helpful since the example it describes required
accessing digital signals inside the player.
     I am particularly interested in being able to interpret any
subcode info that comes from this connector.
     -Thanks- in advance.
                            Ron