KSZ8842-16MQL Micrel Inc, KSZ8842-16MQL Datasheet - Page 4

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

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

Content
General Description................................................................................................................. 1
Functional Diagram ................................................................................................................. 1
Features .................................................................................................................................... 2
Applications ............................................................................................................................. 2
Markets ..................................................................................................................................... 2
Ordering Information ............................................................................................................... 3
Contacts.................................................................................................................................... 3
Revision History....................................................................................................................... 3
Content ..................................................................................................................................... 4
List of Figures .......................................................................................................................... 8
List of Tables............................................................................................................................ 9
Pin Configuration for KSZ8842-16 Switches (8/16-Bit) ....................................................... 10
Pin Description for KSZ8842-16 Switches (8/16-Bit)........................................................... 11
Pin Configuration for KSZ8842-32 Switches (32-Bit) .......................................................... 16
Pin Description for KSZ8842-32 Switches (32-Bit).............................................................. 17
Functional Description .......................................................................................................... 22
Functional Overview: Physical Layer Transceiver.............................................................. 22
Functional Overview: MAC and Switch................................................................................ 26
Micrel Confidential
November 2005
100BASE-TX Transmit......................................................................................................................................................22
100BASE-TX Receive.......................................................................................................................................................22
Scrambler/De-scrambler (100BASE-TX Only) ..................................................................................................................22
10BASE-T Transmit ..........................................................................................................................................................22
10BASE-T Receive ...........................................................................................................................................................22
Power Management..........................................................................................................................................................23
MDI/MDI-X Auto Crossover ..............................................................................................................................................23
Auto Negotiation ...............................................................................................................................................................24
LinkMD Cable Diagnostics ................................................................................................................................................25
Address Lookup ................................................................................................................................................................26
Learning............................................................................................................................................................................26
Migration ...........................................................................................................................................................................26
Aging.................................................................................................................................................................................26
Forwarding........................................................................................................................................................................27
Switching Engine ..............................................................................................................................................................29
MAC Operation .................................................................................................................................................................29
Inter Packet Gap (IPG) .....................................................................................................................................................29
Back-Off Algorithm............................................................................................................................................................29
Late Collision ....................................................................................................................................................................29
legal Packet Size ..............................................................................................................................................................29
Flow Control......................................................................................................................................................................29
Half-Duplex Backpressure ................................................................................................................................................29
Broadcast Storm Protection ..............................................................................................................................................30
Repeater Mode .................................................................................................................................................................30
Clock Generator................................................................................................................................................................30
Straight Cable.................................................................................................................................................................23
Crossover Cable.............................................................................................................................................................24
Access............................................................................................................................................................................25
Usage .............................................................................................................................................................................26
4
KSZ8842-16/32 MQL/MVL
Rev. 1.4