Atmel AT83SND2C MP3 - Manual (Page 19)

Communication Protocol
AT83SND2CMP3 User Guide 3-15
7525A–MP3–07/05
Figure 3-3. Protocol communication principle of use
SYSTEM
_ACK
+
STATUS
COMMAND
SYSTEM_
GET_STATUS
Controller_Rx
Controller_Tx
SYSTEM
_ACK
+
STATUS