Epson S2R72V18 Technical Manual page 348

Code
000
001
010
011 D
100
Other
Bit3-2 Reserved
Bit1 CTL_SupportCmp
Directly specifies interrupt factors.
This bit is set to "1" when all stages of the control transfer end normally with the control transfer
support function.
This bit is also set to "1" if the status stage ends normally and the stop processing is completed for
the control transfer support function stop processing because the H_CTL_SupportControl register
CTL_SupportGo bit is cleared.
Bit0 CTL_SupportStop
Directly specifies interrupt factors.
This bit is set to "1" when the control transfer is terminated in mid-course with an error by the
control transfer support function.
This bit is also set to "1" if stop processing ends for a stage other than the status stage or if the
status stage ends with a transaction error for the control transfer support function stop processing
because the H_CTL_SupportControl register CTL_SupportGo bit is cleared.
S2R72V18 Technical Manual (Rev.1.00)
Meaning
N E
O RROR
S
TALL
D O
ATA VERRUN
U
ATA NDERRUN
R E
ETRY RROR
Reserved
Transaction completed normally.
Endpoint returned a stall PID.
•
The data packet received exceeds the maximum packet size.
* Processed as a retry error if detected at same time as a
CRC or bit stuffing error.
•
The data quantity received exceeds the IRP (TotalSize).
* Processed as a retry error if detected at same time as a
CRC or bit stuffing error.
* Processed as a toggle mismatch rather than a data
overrun if the data packet is smaller than the maximum
packet size and the data toggle included in the data
packet fails to match the expected value.
•
The data packet received is smaller than the maximum
packet size; the data quantity is less than the IRP (TotalSize).
Processed as a retry error if detected at same time as a
*
CRC or bit stuffing error.
•
Device fails to respond to tokens within the specified
timeframe (IN) or fails to issue a handshake within the
specified timeframe (OUT).
•
The data packet from the endpoint contains a CRC error.
•
The data packet from the endpoint contains a bit stuffing
error.
•
The PID inspection bit from the endpoint failed for data PID
(IN) or handshake (OUT).
•
The PID received is disabled or the PID value is undefined.
•
The data toggle contained in the data packet from the
endpoint fails to match the expected value (toggle mismatch).
EPSON
3. Register Details
Description
331