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RTL8316
2001/11/09
Rev.1.72
8
ENVLAN
I
(P-down)
P0TXD0
Enable Port Based VLAN configuration function:
Latched during
hardware reset. The VLAN topology is control by VlanType pin, but
will be disabled if the trunking function is enabled.
1: Enable the VLAN function on each port.
0: Disable the VLAN function on each 16 ports. (default)
P11TXE
VLAN topology type selection:
Used to select 14 VLANs or 15
VLANs topology. During hardware reset, the pull-high/low value will
control the HOME VLAN topology type :
1: Select 15 VALNs (port#0~14) with 1 overlapping port
(port #15) topology.
0: Select 14 VLANs (port#0~13) with 2 overlapping ports
(port #14,15) topology.
(default)
[P6TXD0,
P6TXE]
hardware reset. Setting as follows:
00: Disable port based priority. (default)
01: Set port#0~1 as high priority ports. (2 ports)
10: Set port#0~3 as high priority ports. (4 ports)
11: Set port#0~7 as high priority ports. (8 ports)
P5TXD0
Enable 802.1p VLAN Tag priority based QoS function:
Latched
during hardware reset.
1: Enabled
0: Disabled (default)
P5TXE
Enable TCP/IP TOS/DS (DiffServ) based QoS function:
Latched
during hardware reset.
1: Enabled
High Priority
: if TOS/DS[0:5] =
(EF) "101110";
(AF) "001010", "010010",
"011010", "100010";
(Network Control) "11x000";
Low Priority
: if TOS/DS = other
codepoint values.
0: Disabled (default)
(DS = Differentiated Service)
[P7TXD0,
P7TXE]
hardware reset.
The frame service rate is
High-pri queue: Low-pri queue
11 = always high priority queue first (default)
10 = 8:1
01 = 4:1
00 = 2:1
P4TXD0
Enable Flow Control Ability Auto Turn Off:
Latched during
hardware reset. Enable Auto turn off low priority queue's flow
control ability 1~2 seconds whenever the port received a high
priority frame. The flow control ability will be re-enabled when no
high priority frames are received for the 1~2 second period.
1: Enabled
0: Disabled
VlanType
I
(P-down)
EnPortPri[1:0]
I
(P-down,
P-down)
Enable Port based priority QoS function:
Latched during
En8021pPri
I
(P-down)
EnDSPri
I
(P-down)
QWEIGHT[1:0]
I
(P-up,
P-up)
Weighted round robin ration of priority queue:
Latched during
EnFCAutoOff
I
(P-down)