PIC32MX440F256H-80I Datasheet, PDF (262/646 Pages) Microchip Technology – 64/100-Pin General Purpose and USB 32-Bit Flash Microcontrollers

PIC32MX3XX/4XX
REGISTER 11-8: U1EIR: USB ERROR INTERRUPT STATUS REGISTER
r-x
r-x
r-x
r-x
r-x
r-x
r-x
—
—
—
—
—
—
—
bit 31
r-x
—
bit 24
r-x
r-x
r-x
r-x
r-x
r-x
r-x
r-x
—
—
—
—
—
—
—
—
bit 23
bit 16
r-x
r-x
r-x
r-x
r-x
r-x
r-x
r-x
—
—
—
—
—
—
—
—
bit 15
bit 8
R/W/K-0
BTSEF
bit 7
R/W/K-0
BMXEF
R/W/K-0
DMAEF
R/W/K-0
BTOEF
R/W/K-0
DFN8EF
R/W/K-0
CRC16EF
R/W-0
CRC5EF⁽⁴⁾
EOFEF⁽⁵⁾
R/W-0
PIDEF
bit 0
Legend:
R = Readable bit
U = Unimplemented bit
W = Writable bit
K = Write ‘1’ to clear
P = Programmable bit
r = Reserved bit
-n = Bit Value at POR: (‘0’, ‘1’, x = unknown)
bit 31-8
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
Reserved: Write ‘0’; ignore read
BTSEF: Bit Stuff Error Flag bit
Write a ‘1’ to this bit to clear the interrupt.
1 = Packet rejected due to bit stuff error
0 = Packet accepted
BMXEF: Bus Matrix Error Flag bit
Write a ‘1’ to this bit to clear the interrupt.
1 = The base address, of the BDT, or the address of an individual buffer pointed to by a BDT entry,
is invalid.
0 = No address error
DMAEF: DMA Error Flag bit⁽¹⁾
Write a ‘1’ to this bit to clear the interrupt.
1 = USB DMA error condition detected
0 = No DMA error
BTOEF: Bus Turnaround Time-Out Error Flag bit⁽²⁾
Write a ‘1’ to this bit to clear the interrupt.
1 = Bus turnaround time-out has occurred
0 = No bus turnaround time-out
DFN8EF: Data Field Size Error Flag bit
Write a ‘1’ to this bit to clear the interrupt.
1 = Data field received is not an integral number of bytes
0 = Data field received is an integral number of bytes
CRC16EF: CRC16 Failure Flag bit
Write a ‘1’ to this bit to clear the interrupt.
1 = Data packet rejected due to CRC16 error
0 = Data packet accepted
DS61143E-page 260
Preliminary
© 2008 Microchip Technology Inc.