PIC24FJ256DA210 Datasheet, PDF (269/408 Pages) Microchip Technology – 64/100-Pin, 16-Bit Flash Microcontrollers with Graphics Controller and USB On-The-Go (OTG)

PIC24FJ256DA210 FAMILY
REGISTER 18-19: U1EIR: USB ERROR INTERRUPT STATUS REGISTER
U-0
U-0
U-0
U-0
U-0
U-0
U-0
—
—
—
—
—
—
—
bit 15
U-0
—
bit 8
R/K-0, HS
U-0
R/K-0, HS R/K-0, HS R/K-0, HS R/K-0, HS R/K-0, HS R/K-0, HS
BTSEF
—
DMAEF
BTOEF
DFN8EF CRC16EF CRC5EF
PIDEF
EOFEF
bit 7
bit 0
Legend:
R = Readable bit
-n = Value at POR
U = Unimplemented bit, read as ‘0’
K = Write ‘1’ to clear bit
HS = Hardware Settable bit
‘1’ = Bit is set
‘0’ = Bit is cleared
x = Bit is unknown
bit 15-8
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
Unimplemented: Read as ‘0’
BTSEF: Bit Stuff Error Flag bit
1 = Bit stuff error has been detected
0 = No bit stuff error has been detected
Unimplemented: Read as ‘0’
DMAEF: DMA Error Flag bit
1 = A USB DMA error condition is detected; the data size indicated by the BD byte count field is less
than the number of received bytes, the received data is truncated
0 = No DMA error
BTOEF: Bus Turnaround Time-out Error Flag bit
1 = Bus turnaround time-out has occurred
0 = No bus turnaround time-out
DFN8EF: Data Field Size Error Flag bit
1 = Data field was not an integral number of bytes
0 = Data field was an integral number of bytes
CRC16EF: CRC16 Failure Flag bit
1 = CRC16 failed
0 = CRC16 passed
For Device mode:
CRC5EF: CRC5 Host Error Flag bit
1 = Token packet is rejected due to CRC5 error
0 = Token packet is accepted (no CRC5 error)
For Host mode:
EOFEF: End-Of-Frame Error Flag bit
1 = End-Of-Frame error has occurred
0 = End-Of-Frame interrupt is disabled
PIDEF: PID Check Failure Flag bit
1 = PID check failed
0 = PID check passed
Note:
Individual bits can only be cleared by writing a ‘1’ to the bit position as part of a word write operation on the
entire register. Using Boolean instructions or bitwise operations to write to a single bit position will cause
all set bits at the moment of the write to become cleared.
 2010 Microchip Technology Inc.
DS39969B-page 269