Protocol Frame Description
Table
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Frame Start | Channel | Command | Data Length | Data | CheckSum | |
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7Eh | Not used, | 0Bh | 00h | No | Yes | |
FFh | ||||||
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SYSTEM_VOLUME_DOWN Master gain volume down (one step). Player response is PLAYER_VOLUME* frame.
Table
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Frame Start | Channel | Command | Data Length | Data | CheckSum | |
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7Eh | Not used, | 0Ch | 00h | No | Yes | |
FFh | ||||||
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SYSTEM_PLAYER_MODE Set player mode for the selected memory:
Repeat / No Repeat the Play mode
Play modes:
–Play single file
–Play Dir
–Play Disk
| Table | Player Mode |
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7 |
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| 6 |
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| 5 | 4 | 3 | 2 | 1 | 0 |
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REPEAT |
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| - | FILETYP2 | FILETYP1 | FILETYP0 | MOD1 | MOD0 | |
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Bit |
| Bit |
| Description |
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Number |
| Mnemonic |
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7 |
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| REPEAT |
| Repeat Mode |
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| Clear for no repeat mode. |
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| Set for repeat mode. |
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6:5 |
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| - |
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| Reserved |
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4:2 |
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| FILETYP |
| Player File type |
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| Set to 000b to see MP3 files only, set to 100b to see all files extensions on |
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| selected memory (file transfer mode). |
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1:0 |
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| MOD |
| Play mode. |
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| Refer to Table |
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AT83SND2CMP3 User Guide |