AT85C51SND3Bx
Bit
Bit
Number
Mnemonic Description
Role Exchange Interrupt Flag
Set by hardware when the USB controller has successfully swapped its mode,
due to an HNP negotiation: Host to Device or Device to Host.
Shall be cleared by software. See for more details.
3
ROLEEXI
B-Connection Error Interrupt Flag
2
1
BCERRI
VBERRI
Set by hardware when an error occur during the B-Connection.
Shall be cleared by software.
V-Bus Error Interrupt Flag
Set by hardware when a drop on VBus has been detected.
Shall be cleared by software.
SRP Interrupt Flag
Set by hardware when a SRP has been detected. Shall be used in the Host
mode only.
0
SRPI
Shall be cleared by software.
Reset Value = 0000 0000b
99
7632A–MP3–03/06
ATMEL [ ATMEL ]
