參數(shù)資料
型號: GT-48004A
廠商: Galileo Technology Services, LLC
英文描述: Four Port Switched Fast Ethernet Controller(四端口、交換式快速以太網(wǎng)控制器)
中文描述: 四端口交換式快速以太網(wǎng)控制器(四端口,交換式快速以太網(wǎng)控制器)
文件頁數(shù): 87/106頁
文件大小: 953K
代理商: GT-48004A
GT-48004A Four Port Switched Fast Ethernet Controller
81
Revision 1.0
N:\Marketing\Docs\Archive\48004A\DATASHEET\Rev 1.0\484ads10.fm
Port Control (2 Registers), Offset: 0x040200 - 0x040 204
Note: Modifying bits [9:1] of any Port Control Register must be preceeded by disabling that port via bit[0], the EnDev*
input or bit[27] of the Global Control Register (EnableDevice).
Bi ts
Fi e l d Na m e
Fun cti o n
In iti a l Va l u e
0
PortEn
Port Enable.
0 - Port is disabled
1 - Port is enabled
0x1
1
FullDx
Half/Full Duplex.
0 - Port works in half-duplex mode
1 - Port works in full-duplex mode
DAddr[6] for port 0 or
DAddr[7] for port 1 (at
RESET)
2
MonMode
Monitoring Mode.
0 - Port works in normal mode
1 - Port works in monitoring mode; all Rx and Tx pack-
ets are sent to the Sniffer
0x0
5:3
Reserved
Reserved.
0x1
6
FilBroad
Filter Broadcast.
0 - Broadcast packets are forwarded to all ports.
1 - The GT-48004A discards Broadcast packets.
0x0
7
ForwUnk
Forward Unknown.
0 - Unknown packets are forwarded.
1 - The GT-48004A does not forward Unknown pack-
ets to this port.
0x0
8
SpanEn
Spanning Tree Enable.
Meaningful only when SpanEn bit in the Global Con-
trol register is set.
0 - All packets are accepted.
1 - The GT-48004A discards all incoming/outgoing
packets except for BPDU packets.
0x0
9
VTagEn
Virtual LAN Tagging Packet Extension Enable
0 - Accept packets up to 1518 bytes in length
1 - Accept packets up to 1522 bytes in length
0x0
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