at85c51snd3 ATMEL Corporation, at85c51snd3 Datasheet - Page 131

• Manufacturer Part Number: at85c51snd3
• Description: At85c51snd3 Single-chip Digital Audio Decoder - Encoder With Usb 2.0 Interface
• Manufacturer: ATMEL Corporation

OUT Pipe Management
7632D–MP3–01/07
The firmware has to change the Token for each phase.
The initial data toggle is set for the corresponding token (ONLY for Control Pipe):
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The Pipe must be configured and not frozen first.
Note: if the firmware decides to switch to suspend mode (clear SOFE) even if a bank is
ready to be sent, the USB controller will automatically exit from Suspend mode and the
bank will be sent.
SETUP: Data0
OUT: Data1
IN: Data1 (expected data toggle)
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