
IP1726 LF
Preliminary Data Sheet
19/33
Jun 15, 2005
Copyright © 2003, IC Plus Corp.
IP1726 LF-DS-R06
6
Register Map
R = Read ; W = Write ; R/W = Read/Write
Register
Address
Register Description
Attribute
Default
value
01H
Half duplex control
Bit [0]: Drops the packet that encounters 16 successive collisions.
1: Drop; 0: Forward
Bit [1]: Collision back off.
1: Disable; 0: Enable
Bit [2]: Reserved and should be set to “0”.
Bit [3]: Broadcast BPDU packet.
1: Broadcast; 0: Drop
Bit [4]: Reserved and should be set to “0”.
Bit [15]~ Bit 5: Not used.
R/W
5’h0A
02H
Network configuration packet capture:
Bit [0]: Spanning tree.
1: Capture & forward to the CPU port.
0: Drop.
Bit[1]: In-band management packet(Destinatopn MAC Address
=This Switch MAC Address)
1:
Forward to the CPU port
0:
Drop
Note: If this bit is set to “1”, the ARP packet will be sent to CPU port
too.
Bit[2]: LACP
1:
Only forward to the CPU port when register1 bit[3 ]= 0.
Braodcast to other ports when register1 bit[3]=1
0: Drop
Bit[3]: GVRP
1: Capture & forward to the CPU port only .
0: Broadcast
IP packet capture
Bit[5:4] : ICMP
Bit[7:6] : IGMP
Bit[9:8] : TCP
Bit[11:10] : UDP
Bit[13:12] : OSPF
Bit[15:14] : Others
00 : Send to port 1 ~ port 24 only
01 : Send to port 26(CPU) and port 1 ~ port 24
10 : Send to port 26(CPU) only
Note:
1.
When the packet capture function is enabled, port 26 should be
set to as CPU port!
2.
If only one CPU port is required, it’s recommedded to set port 26
as the CPU port.
R/W
16’h0000