Datasheet

SAM3X / SAM3A [DATASHEET]
Atmel-11057C-ATARM-SAM3X-SAM3A-Datasheet_23-Mar-15
1178
39.6.3.21 Host Pipe x Error Register
Name: UOTGHS_HSTPIPERRx [x=0..9]
Address: 0x400AC680
Access: Read-write
• COUNTER: Error Counter
This field is incremented each time an error occurs (CRC16, TIMEOUT, PID, DATAPID or DATATGL).
This field is cleared when receiving a good USB packet without any error.
When this field reaches 3 (i.e., 3 consecutive errors), this pipe is automatically frozen (UOTGHS_HSTPIPIMRx.PFREEZE
is set).
Writing 0b00 to this field will clear the counter.
• CRC16: CRC16 Error
This bit is set when a CRC16 error has been detected.
Writing a zero to this bit will clear the bit.
Writing a one to this bit has no effect.
• TIMEOUT: Time-Out Error
This bit is set when a Time-Out error has been detected.
Writing a zero to this bit will clear the bit.
Writing a one to this bit has no effect.
• PID: PID Error
This bit is set when a PID error has been detected.
Writing a zero to this bit will clear the bit.
Writing a one to this bit has no effect.
• DATAPID: Data PID Error
This bit is set when a Data PID error has been detected.
Writing a zero to this bit will clear the bit.
Writing a one to this bit has no effect.
• DATATGL: Data Toggle Error
This bit is set when a Data Toggle error has been detected.
Writing a zero to this bit will clear the bit.
Writing a one to this bit has no effect.
31 30 29 28 27 26 25 24
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23 22 21 20 19 18 17 16
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15 14 13 12 11 10 9 8
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76543210
– COUNTER CRC16 TIMEOUT PID DATAPID DATATGL