LAN9500 Datasheet, PDF (147/213 Pages) SMSC Corporation – USB 2.0 to 10/100 Ethernet Controller Promiscuous mode

7.3.21 INTERRUPT ENDPOINT CONTROL REGISTER (INT_EP_CTL)
Address:
068h
Size:
32 bits
LAN950x
This register determines which events cause status to be reported by the interrupt endpoint. See Section 5.3.1.3, "End-
point 3 (Interrupt)" for more details.
Bits
31
30:20
19
18
17
16
15
14
13
12
11
10:0
Description
Interrupt Endpoint Always On (INTEP_ON)
When this bit is set, an interrupt packet will always be sent at the interrupt
endpoint interval.
0 = Only allow the transmission of an interrupt packet when an interrupt
source is enabled and occurs.
1 = Always transmit an interrupt packet at the interrupt interval.
RESERVED
MAC Reset Time Out (MACRTO_EN)
0 = This event can not cause an interrupt packet to be issued.
1 = This event can cause an interrupt packet to be issued.
RX FIFO Has Frame Enable (RX_FIFO_EN)
0 = This event can not cause an interrupt packet to be issued.
1 = This event can cause an interrupt packet to be issued.
TX Stopped Enable (TXSTOP_EN)
0 = This event can not cause an interrupt packet to be issued.
1 = This event can cause an interrupt packet to be issued.
RX Stopped Enable (RXSTOP_EN)
0 = This event can not cause an interrupt packet to be issued.
1 = This event can cause an interrupt packet to be issued.
PHY Interrupt Enable (PHY_EN)
0 = This event can not cause an interrupt packet to be issued.
1 = This event can cause an interrupt packet to be issued.
Transmitter Error Enable (TXE_EN)
0 = This event can not cause an interrupt packet to be issued.
1 = This event can cause an interrupt packet to be issued.
TX Data FIFO Underrun Interrupt Enable (TDFU_EN)
0 = This event can not cause an interrupt packet to be issued.
1 = This event can cause an interrupt packet to be issued.
TX Data FIFO Overrun Interrupt Enable (TDFO_EN)
0 = This event can not cause an interrupt packet to be issued.
1 = This event can cause an interrupt packet to be issued.
RX Dropped Frame Interrupt Enable (RXDF_EN)
0 = This event can not cause an interrupt packet to be issued.
1 = This event can cause an interrupt packet to be issued.
GPIOx Interrupt Enable (GPIOx_EN)
0 = This event can not cause an interrupt packet to be issued.
1 = This event can cause an interrupt packet to be issued.
Type
R/W
RO
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Default
0b
-
0b
0b
0b
0b
0b
0b
0b
0b
0b
0b
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DS00001875A-page 147