DM8203
2-port switch with MII / RMII Interface
6.17 Per Port Block Multicast ports Control Register (69H)
Bit
7:4
3:0
Name
RESERVED
BLK_MP
Default
PH0,RW Reserved
PH0,RW Ports of Multicast Packet Be Blocked
Description
The received multicast packets are not forward to the assigned ports.
6.18 Per Port Block Broadcast ports Control Register (6AH)
Bit
7:4
3:0
Name
RESERVED
BLK_BP
Default
PH0,RW Reserved
PH0,RW Ports of Broadcast Packet Be Blocked
Description
The received broadcast packets are not forward to the assigned ports.
6.19 Per Port Block Unknown ports Control Register (6BH)
Bit
7:4
3:0
Name
RESERVED
BLK_UKP
Default
PH0,RW Reserved
PH0,RW Ports of Unknown Packet Be Blocked
The packets with DA field not found in address table are not forward to
the assigned ports.
Description
6.20 Per Port Priority Queue Control Register (6DH)
Bit
7
Name
TAG_OUT
Default
Description
PE0,RW Output Packet Tagging Enable
The transmitted packets are containing VLAN tagged field.
PE0,RW Priority Queue Disable
Only one transmit queue is supported in this port.
PE0,RW Weighted Fair Queuing
6
5
PRI_DIS
WFQUE
1: The priority weight for queue 3, 2, 1, and 0 is 8, 4, 2, and 1
respectively.
0: The queue 3 has the highest priority, and the next priorities are queue
2, 1, and 0 respectively.
4
TOS_PRI
PE0,RW Priority ToS over VLAN
If an IP packet with VLAN tag, the priority of this packet is decode from
ToS field.
3
2
TOS_OFF
PRI_OFF
P_PRI
PE0,RW ToS Priority Classification Disable
The priority information from ToS field of IP packet is ignored.
PE0,RW 802.1 p Priority Classification Disable
The priority information from VLAN tag field is ignored.
PE0,RW Port Base priority
1:0
The priority queue number in port base.
00= queue 0, 01=queue 1, 10=queue 2, 11=queue 3
6.21 Per Port VLAN Tag Low Byte Register (6EH)
Bit
7:0
Name
VID70
Default
PE01,RW VID[7:0]
Description
22
Preliminary datasheet
DM8203-15-DS-P05
October 23, 2008
DAVICOM [ DAVICOM SEMICONDUCTOR, INC. ]
