KSZ8842-PMBLAM MICREL [Micrel Semiconductor], KSZ8842-PMBLAM Datasheet - Page 76
![no-image](/images/no-image-200.jpg)
KSZ8842-PMBLAM
Manufacturer Part Number
KSZ8842-PMBLAM
Description
2-Port Ethernet Switch with PCI Interface
Manufacturer
MICREL [Micrel Semiconductor]
Datasheet
1.KSZ8842-PMBLAM.pdf
(119 pages)
- Current page: 76 of 119
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Micrel, Inc.
Port 1 VID Control Register (Offset 0x0504): P1VIDCR
This register contains the global per port control for the switch port 1 function.
Note: P1VIDCR serve two purposes:
Port 1 Control Register 3 (Offset 0x0506): P1CR3
This register contains the port 1 control register for the switch port 1 function.
October 2007
(1) Associated with the ingress untagged packets, and used for egress tagging.
(2) Default VID for the ingress untagged or null-VID-tagged packets, and used for address look up.
15 – 5
15-13
2 – 0
11-0
Bit
3:2
Bit
Bit
12
4
1
0
00000000000
Default
Default
Default
0x001
111
000
00
0
0
0
0
R/W
R/W
R/W
RW
RW
RW
RW
RW
RW
RW
RW
RO
Description
Port VLAN membership
Define the port’s Port VLAN membership. Bit 2 stands for the host port,
bit 1 for port 2, and bit 0 for port 1. The Port can only communicate within
the membership. An ‘1’ includes a port in the membership; an ‘0’
excludes a port from the membership.
Description
User Priority bits
Port 1 tag [15-13] for priority
CFI bit
Port 1 tag [12] for CFI
VID
Port 1 tag [11-0] for VID
Description
Reserved
Reserved
Ingress Limit Mode.
These bits determine what kinds of frames are limited and counted
against Ingress limiting as follows:
00 = limit and count all frames
01 = limit and count Broadcast, Multicast, and flooded unicast frames
10 = limit and count Broadcast and Multicast frames only
11 = limit and count Broadcast frames only
Count IFG bytes
1 = each frame’s minimum inter frame gap
(IFG) bytes (12 per frame) are included in Ingress and Egress rate
limiting calculations.
0 = IFG bytes are not counted
Count Preamble bytes
1 = each frame’s preamble bytes (8 per frame) are included in Ingress
and Egress rate limiting calculations.
0 = preamble bytes are not counted
76
KSZ8842-PMQL/PMBL
M9999-100207-1.5
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