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AX88780 Datasheet(PDF) 27 Page - ASIX Electronics Corporation |
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AX88780 Datasheet(HTML) 27 Page - ASIX Electronics Corporation |
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27 / 55 page  AX88780 27 ASIX ELECTRONICS CORPORATION 4.24 MACID0--MAC ID0 Register Offset Address = 0xFC70h Default = 0x0000_0000 Field Name Type Default Description 31:16 - R All 0’s Reserved. 15:0 MID15_0 R/W 0x0000 MAC ID Address [15:0]. This field defines lower address bit15 to bit0 of MAC. The MACID0, MACID1 and MACID2 combine into 48-bit MAC address. The MAC address format is [47:0] = {MACID2[15:0], MACID1[15:0], MACID0[15:0]}. If the EEPROM is attached, this field will be auto-loaded from EEPROM after hardware reset. 4.25 MACID1--MAC ID1 Register Offset Address = 0xFC74 Default = 0x0000_0000 Field Name Type Default Description 31:16 - R All 0’s Reserved. 15:0 MID31_16 R/W 0x0000 MAC ID Address [31:16]. 4.26 MACID2--MAC ID2 Register Offset Address = 0xFC78h Default = 0x0000_0000 Field Name Type Default Description 31:16 - R All 0’s Reserved. 15:0 MID47_32 R/W 0x0000 MAC ID Address [47:32]. 4.27 TXLEN--TX Length Register Offset Address = 0xFC7C Default = 0x0000_05FC Field Name Type Default Description 31:11 - R All 0’s Reserved 10:0 MAXTXLEN R/W 0x5FC Max TX packet size This field defines the maximum raw packet size in transmittance. It is not included 4 bytes FCS. 4.28 RXFILTER--RX Packet Filter Register Offset Address = 0xFC80 Default = 0x0000_0004 Field Name Type Default Description 31:6 - R All 0’s Reserved 5 GOODCRC R/W 0 Good CRC enable When this bit is enabled, AX88780 will receive any packet of good CRC. 1 = enable 0 = disable 4 MULTI_HASH R/W 0 Receive Multicast packet by lookup hash table. When this is enabled, AX88780 will receive multicast packet by the hash mapping function. It will refer to HASTAB0, HASHTAB1, HASHTAB2 and HASHTAB3 to look up the table. 1 = enable 0 = disable 3 BROADCAST R/W 0 Receive Broadcast packet When this bit is enabled, AX88780 will receive the broadcast packet 1 = enable |
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