LAN9116 Datasheet, PDF (38/109 Pages) SMSC Corporation – Highly Efficient Single-Chip 10/100 Non-PCI Ethernet Controller

LAN9116
3.12.6 TRANSMIT EXAMPLES
3.12.6.1 TX Example 1
In this example a single, 111-Byte Ethernet packet will be transmitted. This packet is divided into three buffers. The three
buffers are as follows:
Buffer 0:
• 7-Byte “Data Start Offset”
• 79-Bytes of payload data
• 16-Byte “Buffer End Alignment”
Buffer 1:
• 0-Byte “Data Start Offset”
• 15-Bytes of payload data
• 16-Byte “Buffer End Alignment”
Buffer 2:
• 10-Byte “Data Start Offset”
• 17-Bytes of payload data
• 16-Byte “Buffer End Alignment”
Figure 3-14, "TX Example 1" illustrates the TX command structure for this example, and also shows how data is passed
to the TX data FIFO.
DS00002268A-page 38
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