KSZ8862 Micrel Semiconductor, KSZ8862 Datasheet - Page 89

• Manufacturer Part Number: KSZ8862
• Description: 2-port Ethernet Switch With Non-pci Interface And Fiber Support
• Manufacturer: Micrel Semiconductor

Bank 48 Port 1 Control Register 2 (0x02): P1CR2
This register contains the global per port control for the switch function.
Micrel, Inc.
April 2007
Bit
1
0
Bit
15
14
13
12
11
10
9
8
7
6
5
4
Default
0
0
Default
0
0
0
0
0
1
1
0
0
0
0
0
R/W
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
R/W
RW
RW
Description
Tag Removal
1 = when packets are output on the port, the switch removes 802.1p/q tags from packets with
802.1p/q tags when received. The switch will not modify packets received without tags.
0 = disable tag removal.
TX Multiple Queues Select Enable
1 = the port output queue is split into four priority queues.
0 = single output queue on the port. There is no priority differentiation even though packets are
classified into high or low priority.
Description
Reserved
Ingress VLAN Filtering
1= the switch discards packets whose VID port membership in VLAN table bits [18:16] does not
include the ingress port VID.
0 = no ingress VLAN filtering.
Discard Non PVID Packets
1 = the switch discards packets whose VID does not match the ingress port default VID.
0 = no packets are discarded.
Force Flow Control
1 = always enable flow control on the port, regardless of AN result.
0 = the flow control is enabled based on AN result.
Back Pressure Enable
1 = enable port’s half-duplex back pressure.
0 = disable port’s half-duplex back pressure.
Transmit Enable
1 = enable packet transmission on the port.
0 = disable packet transmission on the port.
Receive Enable
1 = enable packet reception on the port.
0 = disable packet reception on the port.
Learning Disable
1 = disable switch address learning capability.
0 = enable switch address learning.
Sniffer Port
1 = port is designated as a sniffer port and transmits packets that are monitored.
0 = port is a normal port.
Receive Sniff
1 = all packets received on the port are marked as “monitored packets” and forwarded to the
designated “sniffer port.”
0 = no receive monitoring.
Transmit Sniff
1 = all packets transmitted on the port are marked as “monitored packets” and forwarded to the
designated “sniffer port.”
0 = no transmit monitoring.
Reserved
89
KSZ8862-16/32MQL
M9999-040407-3.0