The SEND_COLOR/RCV_COLOR device pair is part of the CODEC_TEST system configuration. It utilizes instances of IN_COLOR and OUT_COLOR for input and output of transmitted data, respectively.

In this example, various COLOR values (ASN.1 tag of C2 hexadecimal) are transmitted. The data is encoded as a Red/Green/Blue (RGB) value contained in a 32-bit integer, with a most significant byte (MSB) of FF hexadecimal and successive bytes representing the R, G and B values, respectively, as shown below.