Datasheet

High-Performance 16-bit Non-PCI 10/100 Ethernet Controller with Variable Voltage I/O
Datasheet
SMSC LAN9221/LAN9221i 77 Revision 2.9 (03-01-12)
DATASHEET
Chapter 5 Register Description
The following section describes all LAN9221/LAN9221i registers and data ports.
Figure 5.1 Memory Map
MAC CS R Port
A4h
B0h
Base + 00h
RESERVED
B4h
A0h
RX Data FIFO Port
TX Data FIFO Port
RX Status FIFO Por t40h
20h
50h
FCh
EEPROM Port
04h
1Ch
RX Dat a FIFO Alias Po r ts
24h
3Ch
TX Dat a FIFO Alias Por ts
RX Status FIFO PEEK44h
TX Status FIFO Port48h
TX St at u s FIFO PEEK4Ch
A8h
ACh