
RTL8309SB
Datasheet
Single-chip 9-port 10/100Mbps Switch Controller
21
Track ID: JATR-1076-21 Rev. 1.4
6.2.3.
Port 0 Control 2
Table 19. Port 0 Control 2
Name
Reserved
Byte.bit Description
10.7~
10.0
Default
1111
1000
6.2.4.
Port 0 Control 3
Table 20. Port 0 Control 3
Name
Reserved
Byte.bit Description
11.7~
11.4
11.3
1: Enable packet transmission on port 0
0: Disable packet transmission on port 0
11.2
1: Enable packet reception on port 0
0: Disable packet reception on port 0
11.1
1: Enable switch address learning capability
0: Disable switch address learning capability
11.0
Default
1111
Transmission
enable
Reception enable
1
1
Learning enable
1
Reserved
1
VLAN Entry [A]
VLAN ID [A]
membership Bit
[7:0]
12.7~
12.0
This register along with byte 13.0 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.
0000
0001
6.2.5.
Port 0 Control 4
Table 21. Port 0 Control 4
Name
Port 0 VLAN
index [3:0]
Byte.bit Description
13.7~
13.4
VLAN Membership’, which may be defined in one of the registers ‘VLAN
ID [A] Membership’ to “VLAN ID [I] Membership”. Port 0 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.
13.3~
13.1
13.0
This register along with byte 12.7~12.0 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.
VLAN Entry [A]
14.7~
14.0
VLAN identifier of VLAN A.
15.7~
15.4
15.3~
15.0
VLAN identifier of VLAN A.
Default
0000
In a port-based VLAN configuration, this register indexes port 0’s ‘Port
Reserved
111
VLAN ID [A]
membership Bit
[8]
1
VLAN ID [A]
[7:0]
Reserved
This register along with byte 15.3~15.0 defines the IEEE 802.1Q 12-bit
0000
0000
1111
VLAN ID [A]
[11:8]
This register along with byte 14.7~14.0 defines the IEEE 802.1Q 12-bit
0000