RTL8309SB Datasheet, PDF (59/115 Pages) List of Unclassifed Manufacturers – SINGLE-CHIP 9-PORT 10/100MBPS SWITCH CONTROLLER

RTL8309SB
Datasheet
Reg.bit
16.11
16.10
Name
Disable VLAN
Disable 802.1Q tag
aware VLAN
Mode
RW
RW
Description
1: Disable VLAN
0: Enable VLAN. The default VLAN membership configuration
by internal register is MII port overlapped with all the other
ports to form 8 individual VLANs. This default membership
configuration may be modified by setting internal registers via
the SMI interface or EEPROM.
1: Disable 802.1Q tagged-VID Aware function. The
RTL8309SB will not check the tagged VID on received frames
to perform tagged-VID VLAN mapping. Under this
configuration, the RTL8309SB only uses the per port VLAN
index register to perform Port-Based VLAN mapping
0: Enable the Member Set Filtering function of VLAN Ingress
Rule. The RTL8309SB checks the tagged VID on received
frames with the VIDA[11:0]~VIDH[11:0] to index to a member
set, then performs VLAN mapping. The RTL8309SB uses
tagged-VID VLAN mapping for tagged frames but still uses
port-based VLAN mapping for priority-tagged and untagged
frames
16.9 Disable VLAN
RW 1: The switch will not drop a received frame if the ingress port
member set ingress
of this packet is not included in the matched VLAN member
filtering
set. It will still forward the packet to the VLAN members
specified in the matched member set. This setting works on
both port-based and tag-based VLAN configurations
0: The switch will drop the received frame if the ingress port of
this packet is not included in the matched VLAN member set
16.8 Disable VLAN tag RW 1: The switch accepts all frames it receives whether tagged or
admit control
untagged
0: The switch will only accept tagged frames and will drop
untagged frames
16.7 EEPROM
RO 1: EEPROM does not exist (pin EnEEPROM=0 or pin
existence
EnEEPROM=1 but EEPROM does not exist)
0: EEPROM exists (pin EnEEPROM=1 and EEPROM exists)
16.6 Accept Error
RW 1: Filter bad packets in normal operation
disable
0: Switch all packets including bad ones. This bit is intended for
debugging purposes only
16.5 IEEE 802.3x
RW 1: Determines when to invoke flow control based on
transmit flow
auto negotiation results
control enable
0: Will not enable transmit flow control no matter what the
auto negotiation result is
16.4 IEEE 802.3x
RW 1: When the RTL8309SB receives a pause control frame, it has
receive flow
the ability to stop the next transmission of a normal frame until
control enable
the timer is expired based on the auto negotiation result
0: Will not receive flow control no matter what the
auto negotiation result is
16.3 Broadcast input or RW 1: Broadcast input drop is selected
output drop
0: Broadcast output drop is selected
16.2 Aging enable
RW 1: Enable aging function
0: Disable aging function. The addresses learned in the lookup
table will not be aged out. If the table is full, the last entry in the
table will be deleted to make room for the new entry
Default
1
0
1
1
0
1
1
1
1
1
Single-chip 9-port 10/100Mbps Switch Controller
44
Track ID: JATR-1076-21 Rev. 1.4