- Standard Microsystems Single-Chip Ethernet Controller Specification Sheet

Single-Chip Ethernet Controller with HP Auto-MDIX Support and PCI Interface

Datasheet

Revision 1.22 (09-25-08) 84 SMSC LAN9420/LAN9420i

DATASHEET

Figure 4.1 LAN9420/LAN9420i CSR Memory Map

MAC

Control and Status Registers

(MCSR's)

BA + 7Ch

BA + 80h

RESERVED

(DO NOT USE)

BA + 54h

BA + B0h

RESERVED

(DO NOT USE)

BA + 1FCh

BA + 58h

DMAC

Control and Status Registers

(DCSR's)

System

Control and Status Registers

(SCSR's)

BA + B4h

RESERVED

(DO NOT USE)

BA + BCh

BA + C0h

BA + 0FCh

BA + 100h

Note:

BAR3 – Mem Space is 1KB

BAR4 – I/O Space is 256B