LAN9311-NZW Standard Microsystem (Smsc), LAN9311-NZW Datasheet - Page 130
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LAN9311-NZW
Manufacturer Part Number
LAN9311-NZW
Description
Ethernet Switch 2-Port 10Mbps/100Mbps 128-Pin XVTQFP
Manufacturer
Standard Microsystem (Smsc)
Datasheet
1.LAN9311-NU.pdf
(460 pages)
Specifications of LAN9311-NZW
Package
128XVTQFP
Phy/transceiver Interface
MII
Number Of Primary Switch Ports
2
Maximum Data Rate
100 Mbps
Internal Memory Buffer Size
32 KB
Vlan Support
Yes
Power Supply Type
Analog
Minimum Single Supply Voltage
3 V
Maximum Single Supply Voltage
3.6 V
Maximum Supply Current
0.295 A
Maximum Power Dissipation
1070 mW
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LAN9311-NZW
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Revision 1.7 (06-29-10)
Figure 9.5
to the TX Data FIFO.
TX Command 'A'
Buffer End Alignment = 1
Data Start Offset = 7
First Segment = 1
Last Segment = 0
Buffer Size = 79
TX Command 'B'
Packet Length = 111
TX Command 'A'
Buffer End Alignment = 1
Data Start Offset = 0
First Segment = 0
Last Segment = 0
Buffer Size = 15
TX Command 'B'
Packet Length = 111
TX Command 'A'
Buffer End Alignment = 1
Data Start Offset = 10
First Segment = 0
Last Segment = 1
Buffer Size = 17
TX Command 'B'
Packet Length = 111
illustrates the TX command structure for this example, and also shows how data is passed
31
31
31
Data Written to the
TX Data FIFO Port
Memory Mapped
7-Byte Data Start Offset
17-Byte Payload Data
5-Byte End Padding
End Offset Padding
TX Command 'A'
TX Command 'B'
TX Command 'A'
TX Command 'B'
TX Command 'A'
TX Command 'B'
Data Start Offset
79-Byte Payload
15-Byte Payload
Pad DWORD 1
End Padding
10-Byte
10-Byte
10-Byte
Figure 9.5 TX Example 1
DATASHEET
1B
130
Two Port 10/100 Managed Ethernet Switch with 16-Bit Non-PCI CPU Interface
0
0
0
Data Passed to the
TX Data FIFO
TX Command 'A'
TX Command 'B'
TX Command 'A'
TX Command 'A'
79-Byte Payload
15-Byte Payload
17-Byte Payload
NOTE: Extra bytes
between buffers are
not transmitted
SMSC LAN9311/LAN9311i
Datasheet
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