Document #: 38-08014 Rev. *H Page 40 of 85
0: Interrupt did not trigger
Reset Interrupt Flag (Bit 8)
The Reset Interrupt Flag bit indicates if the USB Reset Detected
interrupt has triggered.
1: Interrupt triggered
0: Interrupt did not trigger
EP7 Interrupt Flag (Bit 7)
The EP7 Interrupt Fl ag bit indica tes if the end poin t seven (EP7)
Transaction Done interrupt has triggered. An EPx Transaction
Done interrupt triggers when any of the following respon ses or
events occur in a transaction for the device’s given EP:
send/receive ACK, send STALL, Timeout occurs, IN Exception
Error, or OUT Exception Error. In additi on, if the NAK Interrupt
Enable bit in the Device n Endpoint Control register is set, this
interrupt also triggers when the device NAKs host requests.
1: Interrupt triggered
0: Interrupt did not trigger
EP6 Interrupt Flag (Bit 6)
The EP6 Interrupt Fla g bi t indi ca te s if the en dpoint six (EP6)
Transaction Done interrupt has triggered. An EPx Transaction
Done interrupt triggers when any of the following respon ses or
events occur in a transaction for the device’s given EP:
send/receive ACK, send STALL, Timeout occurs, IN Exception
Error, or OUT Exception Error. In additi on, if the NAK Interrupt
Enable bit in the Device n Endpoint Control register is set, this
interrupt also triggers when the device NAKs host requests.
1: Interrupt triggered
0: Interrupt did not trigger
EP5 Interrupt Flag (Bit 5)
The EP5 Interrupt Fla g bit indicates if the endpoint five (EP5)
Transaction Done interrupt has triggered. An EPx Transaction
Done interrupt triggers when any of the following respon ses or
events occur in a transaction for the device’s given EP:
send/receive ACK, send STALL, Timeout occurs, IN Exception
Error, or OUT Exception Error. In additi on, if the NAK Interrupt
Enable bit in the Device n Endpoint Control register is set, this
interrupt also triggers when the device NAKs host requests.
1: Interrupt triggered
0: Interrupt did not trigger
EP4 Interrupt Flag (Bit 4)
The EP4 Interrupt Fla g bi t indi ca te s if the en dpoint four (EP4)
Transaction Done interrupt has triggered. An EPx Transaction
Done interrupt triggers when any of the following respon ses or
events occur in a transaction for the device’s given EP:
send/receive ACK, send STALL, Timeout occurs, IN Exception
Error, or OUT Exception Error. In additi on, if the NAK Interrupt
Enable bit in the Device n Endpoint Control register is set, this
interrupt also triggers when the device NAKs host requests.
1: Interrupt triggered
0: Interrupt did not trigger
EP3 Interrupt Flag (Bit 3)
The EP3 Interrupt Fl ag bi t in d i cates if the endpoint three ( EP3)
Transaction Done interrupt has triggered. An EPx Transaction
Done interrupt triggers when any of the following responses or
events occur in a transaction for the device’s given EP:
send/receive ACK, send STALL, Timeout occurs, IN Exception
Error, or OUT Exception Error. In addition, if the NAK Interrupt
Enable bit in the Device n Endpoint Control register is set, this
interrupt also triggers when the device NAKs host requests.
1: Interrupt triggered
0: Interrupt did not trigger
EP2 Interrupt Flag (Bit 2)
The EP2 Interrupt Flag bi t in dicates if the endpoint two (EP2)
Transaction Done interrupt has triggered. An EPx Transaction
Done interrupt triggers when any of the following responses or
events occur in a transaction for the device’s given EP:
send/receive ACK, send STALL, Timeout occurs, IN Exception
Error, or OUT Exception Error. In addition, if the NAK Interrupt
Enable bit in the Device n Endpoint Control register is set, this
interrupt also triggers when the device NAKs host requests.
1: Interrupt triggered
0: Interrupt did not trigger
EP1 Interrupt Flag (Bit 1)
The EP1 Interrupt Flag bit indicates if the endpoint one (EP1)
Transaction Done interrupt has triggered. An EPx Transaction
Done interrupt triggers when any of the following responses or
events occur in a transaction for the device’s given EP:
send/receive ACK, send STALL, Timeout occurs, IN Exception
Error, or OUT Exception Error. In addition, if the NAK Interrupt
Enable bit in the Device n Endpoint Control register is set, this
interrupt also triggers when the device NAKs host requests.
1: Interrupt triggered
0: Interrupt did not trigger
EP0 Interrupt Flag (Bit 0)
The EP0 Interrupt Flag bit indicat e s if the endpoi n t z ero (EP0)
Transaction Done interrupt has triggered. An EPx Transaction
Done interrupt triggers when any of the following responses or
events occur in a transaction for the device’s given EP:
send/receive ACK, send STALL, Timeout occurs, IN Exception
Error, or OUT Exception Error. In addition, if the NAK Interrupt
Enable bit in the Device n Endpoint Control register is set, this
interrupt also triggers when the device NAKs host requests.
1: Interrupt triggered
0: Interrupt did not trigger
Reserved
All reserved bits must be written as ‘0’.