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Single-Chip Ethernet Controller with HP Auto-MDIX Support and PCI Interface
Datasheet
SMSC LAN9420/LAN9420i 147 Revision 1.22 (09-25-08)
DATASHEET
4.5.12 Interrupt Mask
Index (In Decimal): 30 Size: 16 bits
BITS DESCRIPTION TYPE DEFAULT
15:8 RESERVED RO -
7:0 Mask Bits
1 = interrupt source is enabled, 0 = interrupt source is masked
R/W 00h