Controller_rx controller_tx, Connected to int0) – Atmel AT83SND2C MP3 User Manual
Page 36
Protocol Frame Description
5-32
AT83SND2CMP3 User Guide
7525A–MP3–07/05
Table 5-11 . SYSTEM_WAKEUP command
SYSTEM_USB_DETACH
Command
Request the Player to perform a USB detach.
Warning: during USB data transfer, performing a USB detach can corrupted the current
data transfered on the memory.
In USB mode, the Remote Controller must check the USB_CONNECTED status bit in
AT83SND2CMP3 Status byte to be informed of a manual USB detach.
Table 5-12 . SYSTEM_USB_DETACH Command Format
SYSTEM_USB_CONNECT
Command
SYSTEM_USB_CONNECT is a Remote Controller command to Player for asking an
USB Connection.
Table 5-13 . SYSTEM_USB_CONNECT Command Format
SYSTEM_VOLUME_UP Master gain volume up (one step). Player response is PLAYER_VOLUME* frame.
SYSTEM
_POWERDOWN
SYSTEM
_ACK
Controller_Rx
Controller_Tx
(connected to
INT0)
AT8XC51SND2
Power Down
Mode
1ms
Initialization
Frame Start
Channel
Protocol
Command
Data Length
Data
CheckSum
7Eh
Not used,
FFh
08h
00h
No
Yes
Frame Start
Channel
Protocol
Command
Data Length
Data
CheckSum
7Eh
Not used,
FFh
09h
00h
No
Yes