KSZ8842-16MVL Micrel Inc, KSZ8842-16MVL Datasheet - Page 31
KSZ8842-16MVL
Manufacturer Part Number
KSZ8842-16MVL
Description
2-Port Ethernet Switch/Repeater + Generic (8, 16-bit) Bus Interface( )
Manufacturer
Micrel Inc
Specifications of KSZ8842-16MVL
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
Other names
576-2119
KSZ8842-16MVL
KSZ8842-16MVL
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
KSZ8842-16MVL
Manufacturer:
Micrel
Quantity:
107
Company:
Part Number:
KSZ8842-16MVLI
Manufacturer:
Micrel
Quantity:
354
LinkMD Cable Diagnostics
The KSZ8842M LinkMD uses time domain reflectometry (TDR) to analyze the cabling plant for common cabling problems
such as open circuits, short circuits, and impedance mismatches.
LinkMD works by sending a pulse of known amplitude and duration down the MDI and MDI-X pairs and then analyzes the
shape of the reflected signal. Timing the pulse duration gives an indication of the distance to the cabling fault with a
maximum distance of 200m and an accuracy of +/–2m. Internal circuitry displays the TDR information in a user-readable
digital format in registers P1VCT[8:0] or P2VCT[8:0].
Note: cable diagnostics are only valid for copper connections –fiber-optic operation is not supported.
Access
LinkMD is initiated by accessing register P1VCT/P2VCT, the LinkMD Control/Status register, in conjunction with register
P1CR4/P2CR4, the 100BASE-TX PHY Controller register.
Micrel, Inc.
October 2007
Bypass Auto Negotiation
Start Auto Negotiation
and Set Link Mode
Force Link Setting
YES
NO
Figure 9. Auto Negotiation and Parallel Operation
Attempt Auto
Negotiation
31
Listen for 100BASE-TX
Link Mode Set ?
Link Mode Set
Operation
Parallel
Flow
Idles
Join
YES
NO
Listen for 10BASE-T Link
KSZ8842-16/32 MQL/MVL/MVLI/MBL
Pulses
M9999-102207-1.9