EZ-USB FX3 Technical Reference Manual, Document Number: 001-76074 Rev. *F 504
PROT_INTR
0xE0033404
10.16.2 PROT_INTR
Protocol Layer Interrupt Register
Contains the miscellaneous (not endpoint related) interrupts causes from the Protocol Layer.
15 SET_ADDR0_EV Device sets this interrupt when it receives a set address 0 command.
14 EP0_STALLED_EV Device sets this interrupt based on the following conditions:
1: When Host sends more data than it is suppose to in ingress.
2: When Device sends more data that it suppose to in egress.
3: During STATUS Stage, host sends/asks to/for data from device.
Device will come out of stall condition when it receives a valid SETUP(SUTOK_EV interrupt
will be generated).
13 LMP_INVALID_PORT_CFG_EV Set whenever a LMP port configuration is received but the Link Speed is not ‘1’.
12 LMP_INVALID_PORT_CAP_EV Set whenever a LMP port capability is received but the Link Speed is not ‘1’ or Num HP buf-
fer is not ‘4’ or bit zero of the Direction is not ‘1’.
11 STATUS_STAGE Set when host completes Status Stage of a Control Transfer
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PROT_INTR Protocol Layer Interrupt Register 0xE0033404
b31 b30 b29 b28 b27 b26 b25 b24
PROT_INTR Protocol Layer Interrupt Register
b23 b22 b21 b20 b19 b18 b17 b16
PROT_INTR Protocol Layer Interrupt Register
b15 b14 b13 b12 b11 b10 b9 b8
SET_ADDR0_EV
EP0_STALLED_
EV
LMP_INVALID_
PORT_CFG_EV
LMP_INVALID_
PORT_CAP_EV
STATUS_STAGE HOST_ERR_EV SUTOK_EV ITP_EV
R/W1C R/W1C R/W1C R/W1C R/W1C R/W1C R/W1C R/W1C
R/W1S R/W1S R/W1S R/W1S R/W1S R/W1S R/W1S R/W1S
00000000
PROT_INTR Protocol Layer Interrupt Register
b7 b6 b5 b4 b3 b2 b1 b0
TIMEOUT_HOST_
ACK_EV
TIMEOUT_PING_
EV
TIMEOUT_PORT_
CFG_EV
TIMEOUT_PORT_
CAP_EV
LMP_PORT_CFG
_EV
LMP_PORT_CAP
_EV
LMP_UNKNOWN_
EV
LMP_RCV_EV
R/W1C R/W1C R/W1C R/W1C R/W1C R/W1C R/W1C R/W1C
R/W1S R/W1S R/W1S R/W1S R/W1S R/W1S R/W1S R/W1S
00000000
Bit Name Description
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