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AX88796ALF 数据表(PDF) 32 Page - ASIX Electronics Corporation |
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AX88796ALF 数据表(HTML) 32 Page - ASIX Electronics Corporation |
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32 / 68 page ![]() 32 AX88796ALF 3-in-1 Local Bus Fast Ethernet Controller Copyright © 2006-2013 ASIX Electronics Corporation. All rights reserved. STORAGE FORMAT FOR RECEIVED PACKETS The following diagrams describe the format for how received packets are placed into memory by the local DMA channel. These modes are selected in the Data Configuration Register and setting the CPU[1:0] pins for ISA, 80186, MC68K or MCS-51 mode. D15 D8 D7 D0 Next Packet Pointer Receive Status Receive Byte Count 1 Receive Byte Count 0 Destination Address 1 Destination Address 0 Destination Address 3 Destination Address 2 Destination Address 5 Destination Address 4 Source Address 1 Source Address 0 Source Address 3 Source Address 2 Source Address 5 Source Address 4 Type / Length 1 Type / Length 0 Data 1 Data 0 … … WTS = 1 in Data Configuration Register. This format is used with ISA or 80186 Mode. D15 D8 D7 D0 Receive Status Next Packet Pointer Receive Byte Count 0 Receive Byte Count 1 Destination Address 0 Destination Address 1 Destination Address 2 Destination Address 3 Destination Address 4 Destination Address 5 Source Address 0 Source Address 1 Source Address 2 Source Address 3 Source Address 4 Source Address 5 Type / Length 0 Type / Length 1 Data 0 Data 1 … … WTS = 1 in Data Configuration Register. This format is used with MC68K Mode. |
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