KSZ8842-PMBLAM MICREL [Micrel Semiconductor], KSZ8842-PMBLAM Datasheet - Page 97
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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: 97 of 119
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Micrel, Inc.
Host VID Control Register (Offset 0x0544): P3VIDCR
This register contains the global per port control for the switch host port function.
Host Control Register 3 (Offset 0x0546): P3CR3
This register contains the host port control register for the switch host port function.
October 2007
Note: P3VIDCR serve two purposes:
15-13
15 – 5
11-0
Bit
12
3-2
Bit
4
1
0
(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.
Default
Default
0x001
000
000
00
0
0
0
0
Reserved
Reserved
R/W
RW
RW
RW
Name
0
0
0
Description
User Priority bits
Host Port default tag bits [15-13] for user priority
CFI bit
Host Port default tag bit 12 for CFI
VID bits
Host Port default tag bits [11-0] for VID
R/W
RW
RW
RW
RO
Description
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
97
KSZ8842-PMQL/PMBL
M9999-100207-1.5
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