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AT83SND2CMP3 User Guide 5-26
7525A–MP3–07/05
Section 5
Protocol Frame Description
Note: (*) means the frame is a Player response.
5.1 Player’s Status Description
STATUS byte is the reflect in real-time of AT83SND2CMP3‘s system status. This status
is a parameter of almost all Player frame.
Table 5-1 . Player STATUS Description
76 54 3 2 10
OPM ERROR MERROR MNF USB_CON USB_TRANS - FNA
Bit Number Bit Mnemonic Description
7
OPM Operating Mode
This is bit is set when playing music.
This bit is cleared when Player is in idle mode (not playing)
6
ERROR Command Error
This bit is set when a checksum error occurs with the last
Remote Controller command.
This bit is cleared when there is no error with the last frame.
5
MERROR Memory Error
This bit is set when selected memory is KO
This bit is cleared when selected memory is OK.
4
MNF Memory Not Formated
This bit is set when selected memory is not formated.
This bit is cleared when selected memory is OK.
3
USB_CON USB Connection
This bit is set when an USB connection occured.
This bit is cleared when there is no USB connection.