LAN9215-MT SMSC, LAN9215-MT Datasheet - Page 54

• Manufacturer Part Number: LAN9215-MT
• Description: CONTROLLER, ENET, NON-PCI, 100TQFP
• Manufacturer: SMSC

Specifications of LAN9215-MT

• Data Rate: 100Mbps
• No. Of Ports: 2
• Ethernet Type: IEEE 802.3 / 802.3u
• Supply Current: 40mA
• Supply Voltage Range: 2.97V To 3.63V
• Operating Temperature Range: 0°C To +70°C
• Digital Ic Case Style: TQFP
• Interface Type: HBI
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Revision 1.2 (03-29-06)
3.14.6.2
TX Command 'A'
Buffer End Alignment = 0
Data Start Offset = 6
First Segment = 1
Last Segment = 1
Buffer Size =183
TX Command 'B'
Packet Length = 183
TX Example 2
In this example, a single 183-Byte Ethernet packet will be transmitted. This packet is in a single buffer
as follows:
Figure 3.15, "TX Example 2" illustrates the TX command structure for this example, and also shows
how data is passed to the TX data FIFO. Note that the packet resides in a single TX Buffer, therefore
both the FS and LS bits are set in TX command ‘A’.
2-Byte “Data Start Offset”
183-Bytes of payload data
4-Byte “Buffer End Alignment”
31
Ethernet Controller
Data Written to the
6-Byte Data Start Offset
183-Byte Payload Data
TX Command 'A'
TX Command 'B'
Figure 3.15 TX Example 2
3B End Padding
DATASHEET
54
Highly Efficient 10/100 Ethernet Controller with HP Auto-MDIX
0
NOTE: Extra bytes between buffers
are not transmitted
Data Passed to the
183-Byte Payload Data
TX Data FIFO
TX Command 'B'
TX Command 'A'
SMSC LAN9215
Datasheet