EZ-USB FX3 Technical Reference Manual, Document Number: 001-76074 Rev. *F 518
PROT_EPI_CS1
0xE0033500
10.16.11 PROT_EPI_CS1 (continued)
24 SHORT_MASK Interrupt mask for SHORT bit
23 ZERO_MASK Interrupt mask for ZERO bit
22 STREAMNRDY_MASK Interrupt mask for STREAMNRDY bit
21 FLOWCONTROL_MASK Interrupt mask for FLOWCONTROL bit
20 RETRY_MASK Interrupt mask for RETRY bit
19 COMMIT_MASK Interrupt mask for COMMIT bit
18 FIRST_ACK_NUMP_0 The NumP for the first ACK is zero.
17 STREAM_ERROR Stream Error occurred.
16 DBTERM The Burst was terminated by the device when the MULT_TIMER expires.
15 HBTERM The Burst Was terminated by the host.
14 OOSERR Out Of Sequence Error. Anytime an ACK is received with unexpected sequence number
request, the ACK will be dropped and intr will be raised
13 SHORT Indicates a shorter-than-maxsize packet was received, but UIB_EPI_XFER_CNT did not
reach 0).
12 ZERO Indicates a zero length packet was returned to the host in an IN transaction. Must be
cleared by software.
11 STREAMNRDY Nrdy was sent for a bulk stream request because of EP-stream not present in the mapper.
10 FLOWCONTROL EP in flow control due to EPM not being available.
9RETRY Whenever the USB3.0 does a retry it will asserts this interrupt.
8 COMMIT Set whenever an IN token was ACKed by the host.
5 STREAM_ERROR_STALL_EN Issue STALL whenever Stream error occurs.
4 EP_RESET Per End Point Reset.
3STREAM_EN Enables bulk stream protocol handling for this EP
2STALL Set this bit to “1” to stall an endpoint, and to “0” to clear a stall.
1 NRDY Setting this bit causes NRDY on IN transactions.
0VALID Set VALID=1 to activate an endpoint, and VALID=0 to de-activate it. All USB endpoints
default to invalid. An endpoint whose VALID bit is 0 does not respond to any USB traffic.
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