PIC32MX1XX_12 Datasheet, PDF (129/328 Pages) Microchip Technology – 32-bit Microcontrollers (up to 128 KB Flash and 32 KB SRAM) with Audio and Graphics Interfaces, USB, and Advanced Analog

PIC32MX1XX/2XX
REGISTER 10-8: U1EIR: USB ERROR INTERRUPT STATUS REGISTER (CONTINUED)
bit 1 CRC5EF: CRC5 Host Error Flag bit⁽⁴⁾
1 = Token packet rejected due to CRC5 error
0 = Token packet accepted
EOFEF: EOF Error Flag bit^(3,5)
1 = EOF error condition detected
0 = No EOF error condition
bit 0 PIDEF: PID Check Failure Flag bit
1 = PID check failed
0 = PID check passed
Note 1:
2:
3:
4:
5:
This type of error occurs when the module’s request for the DMA bus is not granted in time to service the
module’s demand for memory, resulting in an overflow or underflow condition, and/or the allocated buffer
size is not sufficient to store the received data packet causing it to be truncated.
This type of error occurs when more than 16-bit-times of Idle from the previous End-of-Packet (EOP)
has elapsed.
This type of error occurs when the module is transmitting or receiving data and the SOF counter has
reached zero.
Device mode.
Host mode.
 2011-2012 Microchip Technology Inc.
Preliminary
DS61168E-page 129