LAN9221-ABZJ Standard Microsystems (SMSC), LAN9221-ABZJ Datasheet - Page 36
LAN9221-ABZJ
Manufacturer Part Number
LAN9221-ABZJ
Description
Manufacturer
Standard Microsystems (SMSC)
Datasheet
1.LAN9221-ABZJ.pdf
(152 pages)
Specifications of LAN9221-ABZJ
Operating Supply Voltage (typ)
1.8/2.5/3.3V
Operating Supply Voltage (min)
1.62V
Operating Supply Voltage (max)
3.6V
Operating Temperature Classification
Commercial
Mounting
Surface Mount
Pin Count
56
Lead Free Status / RoHS Status
Compliant
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High-Performance 16-bit Non-PCI 10/100 Ethernet Controller with Variable Voltage I/O
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 LAN9221/LAN9221i 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]).
36
Revision 2.7 (03-15-10)
SMSC LAN9221/LAN9221i
DATASHEET
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