LAN9303MI-AKZE Datasheet, PDF (155/386 Pages) SMSC Corporation – Small Form Factor Three Port 10/100 Managed Ethernet Switch with Dual MII/RMII/Turbo MII

Small Form Factor Three Port 10/100 Managed Ethernet Switch with Dual MII/RMII/Turbo MII
Datasheet
13.2.1.3 Interrupt Enable Register (INT_EN)
Offset:
05Ch
Size:
32 bits
This register contains the interrupt enables for the IRQ output pin. Writing 1 to any of the bits enables
the corresponding interrupt as a source for IRQ. Bits in the Interrupt Status Register (INT_STS) register
will still reflect the status of the interrupt source regardless of whether the source is enabled as an
interrupt in this register (with the exception of Software Interrupt Enable (SW_INT_EN)). For
descriptions of each interrupt, refer to the Interrupt Status Register (INT_STS) bits, which mimic the
layout of this register.
BITS
DESCRIPTION
31 Software Interrupt Enable (SW_INT_EN)
30 Device Ready Enable (READY_EN)
29 RESERVED
28 Switch Fabric Interrupt Event Enable (SWITCH_INT_EN)
27
26
25:20
19
18:13
12
11:0
Port 2 PHY Interrupt Event Enable (PHY_INT2_EN)
Port 1 PHY Interrupt Event Enable (PHY_INT1_EN)
RESERVED
GP Timer Interrupt Enable (GPT_INT_EN)
RESERVED
GPIO Interrupt Event Enable (GPIO_EN)
RESERVED
TYPE
R/W
R/W
RO
R/W
R/W
R/W
RO
R/W
RO
R/W
RO
DEFAULT
0b
0b
-
0b
0b
0b
-
0b
-
0b
-
SMSC LAN9303M/LAN9303Mi
155
DATASHEET
Revision 1.5 (07-08-11)