KSZ8842-32MVL Micrel Inc, KSZ8842-32MVL Datasheet - Page 99
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KSZ8842-32MVL
Manufacturer Part Number
KSZ8842-32MVL
Description
2-Port Ethernet Switch/Repeater + Generic (32-bit) Bus Interface( )
Manufacturer
Micrel Inc
Specifications of KSZ8842-32MVL
Controller Type
Ethernet Switch Controller
Interface
PCI
Voltage - Supply
3.1 V ~ 3.5 V
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
128-LQFP
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)
70C
Operating Temperature (min)
0C
Pin Count
128
Mounting
Surface Mount
Jtag Support
No
Operating Supply Voltage (max)
3.5V
Operating Supply Voltage (min)
3.1V
Operating Temperature Classification
Commercial
Data Rate
100Mbps
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
576-1635 - BOARD EVALUATION KSZ8842-16MVL
Current - Supply
-
Lead Free Status / RoHS Status
Compliant, Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
KSZ8842-32MVLI
Manufacturer:
Micrel
Quantity:
915
Bank 48 Port 1 Control Register 1 (0x00): P1CR1
This register contains the global per port control for the switch function.
Micrel, Inc.
Bit
15-8
7
6
5
4-3
2
1
0
October 2007
Default
0x00
0
0
0
0x0
0
0
0
R/W
RO
RW
RW
RW
RW
RW
RW
RW
Description
Reserved
Broadcast Storm Protection Enable
1 = enable broadcast storm protection for ingress packets on the port.
0 = disable broadcast storm protection.
Diffserv Priority Classification Enable
1= enable DiffServ priority classification for ingress packets on the port.
0 = disable DiffServ function.
802.1p Priority Classification Enable
1= enable 802.1p priority classification for ingress packets on the port.
0 = disable 802.1p.
Port-Based Priority Classification
00 - ingress packets on port are classified as priority 0 queue if “DiffServ” or “802.1p”
classification is not enabled or fails to classify.
01 - ingress packets on port are classified as priority 1 queue if “DiffServ” or “802.1p”
classification is not enabled or fails to classify.
10 - ingress packets on port are classified as priority 2 queue if “DiffServ” or “802.1p”
classification is not enabled or fails to classify.
11 - ingress packets on port are classified as priority 3 queue if “Diffserv” or “802.1p”
classification is not enabled or fails to classify.
Note: “DiffServ”, “802.1p” and port priority can be enabled at the same time. The OR’ed
result of 802.1p and DSCP overwrites the port priority.
Tag Insertion
1 = when packets are output on the port, the switch adds 802.1p/q tags to packets
without 802.1p/q tags when received. The switch will not add tags to packets already
tagged. The tag inserted is the ingress port’s “port VID”.
0 = disable tag insertion.
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.
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KSZ8842-16/32 MQL/MVL/MVLI/MBL
M9999-102207-1.9