LAN9115_05 Datasheet, PDF (70/131 Pages) SMSC Corporation – Highly Efficient Single- Chip 10/100 Non-PCI Ethernet Controller

Highly Efficient Single-Chip 10/100 Non-PCI Ethernet Controller
Chapter 5 Register Description
Datasheet
The following section describes all LAN9115 registers and data ports.
Note 5.1
The LAN9115 host bus interface supports 16-bit bus transfers; internally, all data paths are
32-bits wide. Figure 5.1 describes the memory map with respect to pairs of atomic 16-bit
transactions.
FCh
RESERVED
B4h
EEPROMPort
B0h
ACh
A8h
MACCSRPort
A4h
A0h
50h
4Ch
TX Status FIFO PEEK
48h
TX Status FIFO Port
44h
RX Status FIFO PEEK
40h
RX Status FIFO Port
3Ch
TX Data FIFO Alias Ports
24h
20h
TX Data FIFO Port
1Ch
RX Data FIFO Alias Ports
04h
Base + 00h
RX Data FIFO Port
Figure 5.1 LAN9115 Memory Map
Revision 1.1 (05-17-05)
70
DATASHEET
SMSC LAN9115