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数据搜索系统，热门电子元器件搜索 |
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AR8327-AL1A-R 数据表(PDF) 130 Page - List of Unclassifed Manufacturers |
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AR8327-AL1A-R 数据表(HTML) 130 Page - List of Unclassifed Manufacturers |
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130 / 394 page  130 • AR8327/AR8327N Seven-port Gigabit Ethernet Switch Atheros Communications, Inc. 130 • June 2011 COMPANY CONFIDENTIAL 3.6.7 ARL_CTRL Address 0x00618 SFT&HW RST Table 3-113 summerizes the ARL_CTRL Register Table 3-113. ARL Control Register 3R/O 0 RESERVED 2:0 R/W 0 VT_FUNC VLAN table operate function. 3'b000: No operation. 3'b001: Flush all entries. 3'b010: load an entry. If these bits are set to 3'b010, cpu want to load an entry into VLAN table. 3'b011: purge an entry. If these bits are set to 3'b011, cpu want to purge an entry from VLAN table. 3'b100:remove an port from VLAN table. The port number which need to be removed is indicated in VT_PORT_NUM. 3'b101:get next If vid is 12'b0 and vt_busy is set by software, hardware should search the first valid entry in VLAN table. If vid is 12'b0and vt_busy is reset by hard ware, there's no valid entry from VID set by software. 3'b110: read one entry Bit R/W Inital Value Mnemonic Description Bit R/W Inital Value Mnemonic Description 31 R/W SC 0 RESERVED 30 R/W 1’b0 LEARN_CHANGE_EN 1'b1: enable new mac address change old one if hash violation occur when learning 1'b0: if hash violation occur when learning, no new address be learned to arl. 29 R/W 1’b0 IGMP_JOIN_LEAKY_EN Igmp join address leaky vlan enable. 1'b1: igmp join address should be set to leaky_en in ARL table, bit 68 in ATU entry is set to 1'b1. 1'b0: igmp join address needn't be set to leaky_en in ARL table, bit 68 in ATU entry is set to 1'b0. 28 R/W 0 IGMP_JOIN_NEW_EN 1'b1: enable hardware add new address to ARL table when received IGMP/MLD join frame, and remove address from ARL when received IGMP/MLD leave frame. 27 R/W 1’b0 IGMP_JOIN_PRI_REMAP _EN Use for igmp packet learn in arl table, define DA priority remap enable (atu[60]) |
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