lan9210 Standard Microsystems Corp., lan9210 Datasheet - Page 34

• Manufacturer Part Number: lan9210
• Description: Lan9210 Small Form Factor Single-chip Ethernet Controller With Hp Auto-mdix Support
• Manufacturer: Standard Microsystems Corp.

Small Form Factor Single-Chip Ethernet Controller with HP Auto-MDIX Support
Datasheet
R X/TX D ata FIFO Port
R X/TX D ata FIFO D irect
C SR s and Status FIFO s
A ccess (addresses 00h to
A ccess
3C h)
(FIFO _SEL = 1)
FIFO Port Endian O rdering
D irect FIFO A ccess Endian
FSELEN D
FPO R TEN D
(H W _C FG [28])
(H W _C FG [29])
Logic
O rdering Logic
"W O R D SW A P"
W O R D _SW A P
Logic
D [15:0]
(H ost D ata B us)
Figure 3.2 LAN9210 Host Data Path Diagram
Data path operations for the various supported endianess and word swap configurations are illustrated
in
Figure
3.3.
Table 3.8, "Endian Ordering Logic Operation"
illustrates the byte ordering applied by the
endian logic for each type of host access. This figure and table assume an internal byte ordering of 3-
2-1-0, where ‘3’ is the most significant byte (data[31:24]) and ‘0’ is the least significant byte (data[7:0]).
34
Revision 2.3 (08-06-08)
SMSC LAN9210
DATASHEET