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LAN9118 데이터시트(PDF) 50 Page - SMSC Corporation |
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LAN9118 데이터시트(HTML) 50 Page - SMSC Corporation |
50 / 126 page High Performance Single-Chip 10/100 Non-PCI Ethernet Controller Datasheet Revision 1.1 (05-17-05) 50 SMSC LAN9118 DATASHEET 3.12.6.2 TX Example 2 In this example, a single 183-Byte Ethernet packet will be transmitted. This packet is in a single buffer as follows: ■ 2-Byte “Data Start Offset” ■ 183-Bytes of payload data ■ 4-Byte “Buffer End Alignment” 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’. Figure 3.15 TX Example 2 TX Command 'A' 0 31 TX Command 'B' Data Written to the Ethernet Controller TX Command 'B' 183-Byte Payload Data Data Start Offset = 6 First Segment = 1 Last Segment = 1 Buffer Size =183 Packet Length = 183 TX Command 'A' TX Command 'B' Data Passed to the TX Data FIFO Buffer End Alignment = 0 3B End Padding TX Command 'A' 6-Byte Data Start Offset 183-Byte Payload Data NOTE: Extra bytes between buffers are not transmitted |
유사한 부품 번호 - LAN9118_05 |
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유사한 설명 - LAN9118_05 |
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