Datasheet

260
7593L–AVR–09/12
AT90USB64/128
• 7-6 - Reserved
The value read from these bits is always 0. Do not set these bits.
• 5 – STOE: Suspend Time-out Error Interrupt Enable bit
Set to enable the STOI interrupt. Clear to disable the STOI interrupt.
• 4 – HNPERRE: HNP Error Interrupt Enable bit
Set to enable the HNPERRI interrupt. Clear to disable the HNPERRI interrupt.
• 3 – ROLEEXE: Role Exchange Interrupt Enable bit
Set to enable the ROLEEXI interrupt. Clear to disable the ROLEEXI interrupt.
• 2 – BCERRE: B-Connection Error Interrupt Enable bit
Set to enable the BCERRI interrupt. Clear to disable the BCERRI interrupt.
• 1 – VBERRE: VBus Error Interrupt Enable bit
Set to enable the VBERRI interrupt. Clear to disable the VBERRI interrupt.
• 0 – SRPE: SRP Interrupt Enable bit
Set to enable the SRPI interrupt. Clear to disable the SRPI interrupt.
• 7-6 - Reserved
The value read from these bits is always 0. Do not set these bits.
• 5 – STOI: Suspend Time-out Error Interrupt flag
Set by hardware when a time-out error (more than 150ms) has been detected after a suspend.
Shall be cleared by software.
• 4 – HNPERRI: HNP Error Interrupt flag
Set by hardware when an error has been detected during the protocol. Shall be cleared by
software.
• 3 – ROLEEXI: 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. However the mode selection bit (Host/Device) is
unchanged and must be changed by firmware in order to reach the correct RAM locations and
events bits. Shall be cleared by software.
Bit 7 6 5 4 3 2 1 0
- - STOE HNPERRE ROLEEXE BCERRE VBERRE SRPE OTGIEN
Read/write R R R/W R/W R/W R/W R/W R/W
Initial value 0 0 0 0 0 0 0 0
Bit 7654 3 210
- - STOI HNPERRI ROLEEXI BCERRI VBERRI SRPI OTGINT
Read/write R R R/W R/W R/W R/W R/W R/W
Initial value 0 0 0 0 0 0 0 0