Shown below are the known SIO STATUS BYTE hexadecimal values.
01 (001) -- OPERATION COMPLETE (NO ERRORS)
8A (138) -- DEVICE TIMEOUT (DOESN'T RESPOND) 8B (139) -- DEVICE NAK 8C (140) -- SERIAL BUS INPUT FRAMING ERROR 8E (142) -- SERIAL BUS DATA FRAME OVERRUN ERROR 8F (143) -- SERIAL BUS DATA FRAME CHECKSUM ERROR 90 (144) -- DEVICE DONE ERROR