
RTL8309SB
Datasheet
Single-chip 9-port 10/100Mbps Switch Controller
45
Track ID: JATR-1076-21 Rev. 1.4
Reg.bit
16.1
Name
Fast aging enable
Mode Description
RW
1: Enable fast aging function. The entry learned in the lookup
table will be aged out if it is not updated within an 800μs period
0: Disable fast aging function
RW
1: Enable ISP MAC Address Translation function
0: Disable ISP MAC Address Translation function
Default
0
16.0
Enable ISP MAC
Address
Translation
0
7.1.7.
PHY 0 Register 17: Global Control 1
Table 71. PHY 0 Register 17: Global Control 1
Mode Description
RW
Classifies priority for incoming 802.1Q packets, if 802.1p
priority classification is enabled. ‘User priority’ is compared
against this value.
>=: Classify as high priority
<: Classify as low priority
RW
1: Combine port 0 and 1 as one trunking port, if trunking is
enabled via strapping pin ‘Dis_Trunk’
0: Combine port 6 and 7 as one trunking port, if trunking is
enabled via strapping pin ‘Dis_Trunk’
RW
The frame service ratio between the high priority queue and low
priority queue is:
11=16:1
10=always high priority queue first
01=8:1
00=4:1
RW
1: Compare both the source and destination IP address of
incoming packets against the value, IP address [A] AND IP
mask [A], to classify packet priority
0: Do not compare the source or destination IP address of
incoming packets against the value ‘IP address [A] AND IP
mask [A]’
RW
1: Compare both the source and destination IP address of
incoming packets against the value, IP address [B] AND IP
mask [B], to classify packet priority
0: Do not compare the source or destination IP address of
incoming packets against the value ‘IP address [B] AND IP
mask [B]’
RW
1: The default DiffServ code point listed below will be
considered as high priority code point if the DiffServ priority
function is enabled.
EF – 101110
AF – 001010, 010010, 011010, 100010
Network Control – 111000, 110000
0: The default DiffServ code point will be considered low
priority
Reg.bit
17.[15:13] 802.1p base
priority
Name
Default
100
17.12
Trunking port
assignment
1
17.[11:10] Queue weight
11
17.9
Disable IP priority
for IP address [A]
0
17.8
Disable IP priority
for IP address [B]
0
17.7
Enable default high
priority DiffServ
code point
1
17.[6:0] Reserved
1111111