KSZ8842-PMBL AM TR Micrel Inc, KSZ8842-PMBL AM TR Datasheet - Page 86
KSZ8842-PMBL AM TR
Manufacturer Part Number
KSZ8842-PMBL AM TR
Description
2-Port Ethernet Switch/Repeater + 32-bit/33MHz PCI Bus Interface( )
Manufacturer
Micrel Inc
Datasheet
1.KSZ8842-PMBL_AM_TR.pdf
(119 pages)
Specifications of KSZ8842-PMBL AM TR
Number Of Primary Switch Ports
2
Internal Memory Buffer Size
32
Operating Supply Voltage (typ)
3.3V
Fiber Support
Yes
Integrated Led Drivers
Yes
Phy/transceiver Interface
MII
Power Supply Type
Analog/Digital
Data Rate (typ)
10/100Mbps
Vlan Support
Yes
Operating Temperature (max)
85C
Operating Temperature (min)
-40C
Mounting
Surface Mount
Jtag Support
No
Operating Supply Voltage (max)
3.5V
Operating Supply Voltage (min)
3.1V
Operating Temperature Classification
Industrial
Data Rate
100Mbps
Lead Free Status / RoHS Status
Supplier Unconfirmed
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Micrel, Inc.
Port 2 VID Control Register (Offset 0x0524): P2VIDCR
This register contains the global per port control for the switch port 2 function.
October 2007
Note: P2VIDCR serve two purposes:
15 – 13
11 – 0
2 – 0
Bit
Bit
12
8
7
6
5
4
3
(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
111
000
0
0
0
0
0
0
0
R/W
R/W
R/W
RW
RW
RW
RW
RW
RW
RW
RW
RW
Description
User Priority bits
Port 2 tag [15-13] for priority
CFI bit
Port 2 tag [12] for CFI
VID bits
Port 2 tag [11-0] for VID
Learning disable
1 = disable switch address learning capability
0 = enable switch address learning
Sniffer port
1 = Port is designated as sniffer port and will transmit packets that are
monitored.
0 = Port is a normal port
Receive sniff
1 = All the packets received on the port will be marked as “monitored
packets” and forwarded to the designated “sniffer port”
0 = no receive monitoring
Transmit sniff
1 = All the packets transmitted on the port will be marked as “monitored
packets” and forwarded to the designated “sniffer port”
0 = no transmit monitoring
User Priority Field
1 = if the packet’s “user priority field” is greater than the “user priority bits”
in port 2’s VID Control register bits [15:13], replace the packet’s “user
priority field” with the “user priority bits” in port 2’s VID Control register bits
[15:13].
0 = do not compare and replace the packet’s ‘user priority field”
Port VLAN membership
Define the port’s Port VLAN membership. Bit 2 stands for port 3, 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
Reserved
86
KSZ8842-PMQL/PMBL
M9999-100207-1.5
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