Allows you to initialize the registers on 17xxx chips for use in our board.
It sets the register to allow you to use Line-In audio jack and monitor the sound as it is being recorded. (This device is only needed if you are buying your 17xxx chips from a supplier other than us).
This board must be plugged onto a CAR/P300 or CAP275 board in order to initialize the chip.
IF YOU HAVE A CAR/P325 THEN THIS FEATURE IS BUILT INTO THE BOARD