
RTL8309SB
Datasheet
Single-chip 9-port 10/100Mbps Switch Controller
31
Track ID: JATR-1076-21 Rev. 1.4
Name
Disable Diffserv
priority
Disable port-
based priority
Byte.bit Description
69.1
1: Disable Diffserv priority classification for ingress packets on port 4
0: Enable Diffserv priority classification
69.0
1: Disable port priority function
0: Enable port priority function. Ingress packets on port 4 will be classified
as high priority
Default
1
1
6.2.27. Port 4 Control 2
Table 43. Port 4 Control 2
Name
Reserved
Byte.bit Description
70.7~
70.0
Default
1111
1000
6.2.28. Port 4 Control 3
Table 44. Port 4 Control 3
Name
Reserved
Byte.bit Description
71.7~
71.4
71.3
1: Enable packet transmission on port 4
0: Disable packet transmission on port 4
71.2
1: Enable packet reception on port 4
0: Disable packet reception on port 4
71.1
1: Enable switch address learning capability
0: Disable switch address learning capability
71.0
Default
1111
Transmission
enable
Reception enable
1
1
Learning enable
1
Reserved
1
VLAN Entry [E]
VLAN ID [E]
membership
Bit[7:0]
72.7~
72.0
This register along with byte 73.0 forms a 9-bit field that specifies which
ports are members of the VLAN. If a destination address look up fails,
packets associated with this VLAN will be forwarded to ports specified in
this field. E.g., 1 0000 0001 means port 8 and 0 are in this VLAN.
0001
0000
6.2.29. Port 4 Control 4
Table 45. Port 4 Control 4
Name
Port 4 VLAN
index [3:0]
Byte.bit Description
73.7~
73.4
VLAN Membership’, which could be defined in one of the registers ‘VLAN
ID [A] Membership’ to “VLAN ID [I] Membership”. Port 4 can only
communicate within the membership. This register also indexes to a default
Port VID (PVID) for each port. The PVID is used in tag insertion and
filtering if the tagged VID is not the same as the PVID.
73.3~
73.1
73.0
This register along with byte 72.7~72.0 forms a 9-bit field that specifies
which ports are members of the VLAN. If a destination address look up fails,
packets associated with this VLAN will be forwarded to ports specified in
this field. E.g., 1 0000 0001 means port 8 and 0 are in this VLAN.
Default
0100
In a port-based VLAN configuration, this register indexes port 4’s ‘Port
Reserved
111
VLAN ID [E]
membership
Bit[8]
1