LAN9303 Datasheet, PDF (269/366 Pages) SMSC Corporation – Small Form Factor Three Port 10/100 Managed Ethernet Switch with Single MII/RMII/Turbo MII

Small Form Factor Three Port 10/100 Managed Ethernet Switch with Single MII/RMII/Turbo MII
Datasheet
13.4.2.43 Port x MAC Interrupt Mask Register (MAC_IMR_x)
Register #:
Port0: 0480h
Port1: 0880h
Port2: 0C80h
Size:
32 bits
This register contains the Port x interrupt mask. Port x related interrupts in the Port x MAC Interrupt
Pending Register (MAC_IPR_x) may be masked via this register. An interrupt is masked by setting the
corresponding bit of this register. Clearing a bit will unmask the interrupt. Refer to Chapter 5, "System
Interrupts," on page 55 for more information.
Note: There are no possible Port x interrupt conditions available. This register exists for future use,
and should be configured as indicated for future compatibility.
BITS
DESCRIPTION
31:8 RESERVED
7:0 RESERVED
Note: These bits must be written as 11h
TYPE
RO
R/W
DEFAULT
-
11h
SMSC LAN9303/LAN9303i
269
DATASHEET
Revision 1.3 (08-27-09)