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KSZ8081MNX / KSZ8091MNX
10Base-T/100Base-TX
Physical Layer Transceiver
Evaluation Board User's Guide
Revision 1.0 / August 2012
© Micrel, Inc. 2012
All rights reserved
Micrel is a registered trademark of Micrel and its subsidiaries in the
United States and certain other countries. All other trademarks are the
property of their respective owners.
The information furnished by Micrel in this datasheet is believed to be accurate and reliable. However, no responsibility is
assumed by Micrel for its use. Micrel reserves the right to change circuitry and specifications at any time without
notification to the customer. Micrel Products are not designed or authorized for use as components in life support
appliances, devices or systems where malfunction of a product can reasonably be expected to result in personal injury.
Life support devices or systems are devices or systems that (a) are intended for surgical implant into the body or (b)
support or sustain life, and whose failure to perform can be reasonably expected to result in a significant injury to the user.
A Purchaser's use or sale of Micrel Products for use in life support appliances, devices or systems is at Purchaser's own
risk and Purchaser agrees to fully indemnify Micrel for any damages resulting from such use or sale.
Micrel, Inc. 2180 Fortune Drive San Jose, CA 95131 U.S.A.
408-944-0800 (voice) 408-474-1000 (fax)
http://www.Micrel.com
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Summary of Contents for Micrel KSZ8081MNX
- Page 1 A Purchaser's use or sale of Micrel Products for use in life support appliances, devices or systems is at Purchaser's own risk and Purchaser agrees to fully indemnify Micrel for any damages resulting from such use or sale.
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Page 2: Revision History
KSZ8081MNX / KSZ8091MNX 10Base-T/100Base-TX Evaluation Board User’s Guide Revision History Revision Date Summary of Changes 8/15/12 Initial Release Micrel, Inc. August 15, 2012 Rev. 1.0 2/13... -
Page 3: Table Of Contents
KSZ8081MNX / KSZ8091MNX 10Base-T/100Base-TX Evaluation Board User’s Guide Table of Contents Introduction ................5 Board Features ................ 5 Evaluation Kit Contents ............5 Hardware Description ............. 6 MII (Media Independent Interface) ................. 7 ... - Page 4 Table 3. KSZ8081MNX-EVAL / KSZ8091MNX-EVAL Loopback Jumper Definition ...... 9 Table 4. KSZ8081MNX-EVAL / KSZ8091MNX-EVAL Miscellaneous Jumper Definition .... 10 Table 5. Strapping Pin Definitions for KSZ8081MNX-EVAL / KSZ8091MNX-EVAL Jumpers ..11 Table 6. KSZ8081MNX-EVAL / KSZ8091MNX-EVAL Test Point Definition ........ 12 ...
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Page 5: Introduction
The KSZ8091MNX has all the identical rich features of the KSZ8081MNX plus support for Energy Efficient Ethernet (EEE) and Wake-on-LAN (WOL). The KSZ8081MNX / KSZ8091MNX come in a 32-pin, lead-free QFN package and provides an ideal solution for 10Base-T/100Base-TX applications that have tight PCB board space. -
Page 6: Hardware Description
KSZ8081MNX / KSZ8091MNX 10Base-T/100Base-TX Evaluation Board User’s Guide Hardware Description The KSZ8081MNX-EVAL / KSZ8091MNX-EVAL (shown in Figure 1) comes in a compact form factor and plugs directly into boards with Ethernet MACs that expose the MII interface. Configuration of the KSZ8081MNX / KSZ8091MNX is accomplished through on-board jumper selections and/or by PHY register access via the MDC/MDIO management pins of the MII Interface. -
Page 7: Mii (Media Independent Interface)
MDC/MDIO capability can be used to read the PHY status or configure the PHY registers. The MIIM frame format and timing information can be found in the KSZ8081MNX and KSZ8091MNX datasheets and in Clause 22 of the IEEE 802.3 Specification. -
Page 8: Table 1. Connector J2 - Mii Pin Definition
KSZ8081MNX / KSZ8091MNX 10Base-T/100Base-TX Evaluation Board User’s Guide Pin # Signal Pin # Signal MDIO Ground Ground RXD3 Ground RXD2 Ground RXD1 Ground RXD0 Ground RXDV Ground RXCLK Ground RXER Ground TXER Ground TXCLK Ground TXEN Ground TXD0 Ground TXD1... -
Page 9: Jumper Setting & Definition
KSZ8081MNX / KSZ8091MNX 10Base-T/100Base-TX Evaluation Board User’s Guide 4.2 Jumper Setting & Definition At power-up, the KSZ8081MNX / KSZ8091MNX is configured using the chip’s internal pull-up and pull-down resistors with its default strapping pin values. Jumpers are provided to override the default settings, allowing for quick configuration and re-configuration of the board. -
Page 10: Table 4. Ksz8081Mnx-Eval / Ksz8091Mnx-Eval Miscellaneous Jumper Definition
For KSZ8081 only For KSZ8091 only (pin 31 = LED1) (pin 31 = TXER) Table 4. KSZ8081MNX-EVAL / KSZ8091MNX-EVAL Miscellaneous Jumper Definition Table 5 lists the strapping pin definitions for the KSZ8081MNX-EVAL / KSZ8091MNX-EVAL jumpers. Jumper Pin Name Pin Function... -
Page 11: Table 5. Strapping Pin Definitions For Ksz8081Mnx-Eval / Ksz8091Mnx-Eval Jumpers
NAND Tree Mode Pull-up (default) = Disable Pull-down = Enable At the de-assertion of reset, this pin value is latched by the chip. Table 5. Strapping Pin Definitions for KSZ8081MNX-EVAL / KSZ8091MNX-EVAL Jumpers Micrel, Inc. August 15, 2012 Rev. 1.0 11/13... -
Page 12: Test Point Definition
KSZ8081MNX / KSZ8091MNX 10Base-T/100Base-TX Evaluation Board User’s Guide 4.3 Test Point Definition The KSZ8081MNX-EVAL / KSZ8091MNX-EVAL has four test points. They are defined in the following table. Test Point Definition Pin 21 (with external pull-up) KSZ8081: Interrupt KSZ8091: Interrupt or PME_N2... -
Page 13: Bill Of Materials
KSZ8081MNX / KSZ8091MNX 10Base-T/100Base-TX Evaluation Board User’s Guide Bill of Materials KSZ8081MNX / KSZ8091MNX Eval Board, Schematic Revision 1.0 Item Quantity Reference Description Package C1,C2 47uF / Tantalum B-size 22uF / Tantalum B-size C4,C5,C7,C10,C11,C12, 0.1uF 0603 C49,C51,C57,C58 C6,C8,C48,C50 10uF / Tantalum A-size 2.2uF... - Page 14 Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Micrel KSZ8081MNX-EVAL...
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