RTL8305SC Datasheet, PDF (54/160 Pages) List of Unclassifed Manufacturers – SINGLE-CHIP 5-PORT 10/100MBPS SWITCH CONTROLLER WITH DUAL MII INTERFACES

RTL8305SC
Datasheet
6.5. Port 4 Registers
6.5.1. Port 4 Control 0
Name
Reserved
Internal Use
Internal Use
Internal Use
Internal Use
VLAN tag insert
and remove
Byte.bit
68.7
68.6
68.5~68.4
68.3
68.2
68.1~68.0
Table 42. Port 4 Control 0
Description
For port 4 egress packets
11=Do not insert or remove VLAN tags to/from packet
10=Insert VLAN tags to non-tagged packets
01=Remove tag from tagged packets
00=Replace the VLAN tags for tagged packets and insert a VLAN tag to
non-tagged packets
Default
0
1
11
1
1
11
6.5.2. Port 4 Control 1
Name
Reserved
Internal Use
Local loopback
Internal Use
Discard Non
PVID packets
Disable 802.1p
priority
Disable Diffserv
priority
Disable port-
based priority on
port 4
Byte.bit
69.7
69.6
69.5
69.4
69.3
69.2
69.1
69.0
Table 43. Port 4 Control 1
Description
Default
1
0
1: Perform ‘local loopback’, i.e. loopback MAC’s RX back to TX
0
0: Normal operation
0
1: If the received packets are tagged, the switch will discard packets whose 0
VID does not match the ingress port’s PVID
0: No packets will be dropped
1: Disable 802.1p priority classification for ingress packets on port 4
1
0: Enable 802.1p priority classification on port 4
1: Disable Diffserv priority classification for ingress packets on port 4
1
0: Enable Diffserv priority classification
1: Disable port based priority QoS function on port 4
1
0: Enable port based priority QoS function on port 4. Ingress packet on port
4 will be classified as high priority
5-port 10/100Mbps Single-Chip Dual MII Switch Controller 42
Track ID: JATR-1076-21 Rev. 1.2