BU9458KV Application Note Rev. 0.02
PROPRIETARY AND CONFIDENTIAL
-
25/42-
2009/05/28
V.2.6 Start Playing
After receiving the operation command and obtaining the file name and the Tag information of the selected
AAC/WMA/MP3 file, the LSI starts playing the file.
Figure V.2.8 shows the operation flow at start of play.
Figure V.2.8 Operation Flow at Start of Play
V.2.6.1 Send PLAY command
The LSI sends the PLAY command in the start-of-play state.
PLAY command
V.2.7 Read Status/Wait/Receive Operation Command
During play, read the status of the play time information and error. Read the play time information at an interval of 100
ms or so.
The LSI waits for the operation command during play. Before sending the command, be sure to read the STATUS1:
SEARCH status. Make sure that the LSI is in the search stop state and then send the command.
Read play time information command
Read STATUS1: SEARCH status command
1st Byte
2nd Byte
0x50
0x01
PLAY
1st Byte
2nd Byte
0x5E 0x0E
READ_BUFF
2 Byte Read
1st Byte
2nd Byte
0x5E 0x00
READ_BUFF
1 Byte Read
1. Start playing
2. Send PLAY command
4. Complete operation at start of play
