KSZ8842-16MQL Micrel Inc, KSZ8842-16MQL Datasheet - Page 86

IC SWITCH 10/100 16BIT 128PQFP

KSZ8842-16MQL

Manufacturer Part Number
KSZ8842-16MQL
Description
IC SWITCH 10/100 16BIT 128PQFP
Manufacturer
Micrel Inc
Datasheets

Specifications of KSZ8842-16MQL

Data Rate
100Mbps
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-MQFP, 128-PQFP
No. Of Ports
1
Ethernet Type
IEEE 802.3u
Supply Current
122mA
Supply Voltage Range
3.1V To 3.5V
Operating Temperature Range
0°C To +70°C
Digital Ic Case Style
QFP
No. Of
RoHS Compliant
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
Package Type
PQFP
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
Interface Type
PCI
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
576-1634 - BOARD EVALUATION KSZ8842-16MQL
Current - Supply
-
Lead Free Status / RoHS Status
Compliant, Lead free / RoHS Compliant
Other names
576-1478-5

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
KSZ8842-16MQL
Manufacturer:
Micrel Inc
Quantity:
10 000
Part Number:
KSZ8842-16MQLI
Manufacturer:
MICREL
Quantity:
760
Bank 48 Port 1 Control Register 1 (0x00): P1CR1
This register contains the global per port control for the switch function.
Micrel Confidential
0
Bit
15-8
7
6
5
4-3
2
1
0
November 2005
Default
0x00
0
0
0
0x0
0
0
0
0
RW
R/W
RO
RW
RW
RW
RW
RW
RW
RW
Figure 15)
0 = normal operation
Reserved
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.
86
KSZ8842-16/32 MQL/MVL
Rev. 1.4

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