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KSZ8091RNA / KSZ8091RND 10Base-T/100Base-TX Evaluation Board User’s Guide

Micrel, Inc.

August 17, 2012

Rev.

1.0

4/11

List of Figures

Figure 1. KSZ8091RNA / KSZ8091RND Evaluation Board ........................................................... 6

Figure 2. KSZ8091RNA-EVAL interfacing with KSZ8463RLI Evaluation Board ............................ 7

List of Tables

Table 1. Board Configuration for RMII Clocking Modes ................................................................. 8

Table 2. Connector J4 - RMII Pin Definition ................................................................................... 8

Table 3. MIIM Source Selection ..................................................................................................... 9

Table 4. 5V Power Source Selection ............................................................................................ 10

Table 5. VDDIO Voltage Selection ............................................................................................... 10

Table 6. KSZ8091RNA-EVAL / KSZ8091RND-EVAL Loopback Jumper Definition .................... 10

Table 7. KSZ8091RNA-EVAL / KSZ8091RND-EVAL Test Point Definition ................................. 11

Table 8. KSZ8091RNA / KSZ8091RND LED Definition ............................................................... 11

Содержание KSZ8091RNA-EVAL

Страница 1: ...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 li...

Страница 2: ...KSZ8091RNA KSZ8091RND 10Base T 100Base TX Evaluation Board User s Guide Micrel Inc August 17 2012 Rev 1 0 2 11 Revision History Revision Date Summary of Changes 1 0 8 17 12 Initial Release...

Страница 3: ...tents 1 0 Introduction 5 2 0 Board Features 5 3 0 Evaluation Kit Contents 5 4 0 Hardware Description 6 4 1 RMII Reduced Media Independent Interface 7 4 2 MDC MDIO Management Interface 9 4 2 1 USB Inte...

Страница 4: ...63RLI Evaluation Board 7 List of Tables Table 1 Board Configuration for RMII Clocking Modes 8 Table 2 Connector J4 RMII Pin Definition 8 Table 3 MIIM Source Selection 9 Table 4 5V Power Source Selecti...

Страница 5: ...091RND EVAL provide a convenient platform to evaluate the features of the device All configuration pins are accessible either by jumpers test points or interface connectors 2 0 Board Features Micrel K...

Страница 6: ...e MDC MDIO management pins at the MII connector Figure 1 KSZ8091RNA KSZ8091RND Evaluation Board A USB type B connector provides access to the MDC MDIO management interface as an alternative to accessi...

Страница 7: ...MHz Mode while the KSZ8091RND powers up in RMII 50MHz mode After power up both KSZ8091RNA and KSZ8091RND can be programmed via PHY register 1Fh bit 7 to either 25MHz mode or 50MHz mode In 25MHz Mode a...

Страница 8: ...and appropriate resistor installation may be used in place of an off board RMII reference clock for 50MHz Mode The Eval Board has a 40 pin male edge connector that interfaces with and plugs directly i...

Страница 9: ...the board attached to MII connector J4 Also note that the MIIM MDC and MDIO signals of the KSZ8091RNA KSZ8091RND operate at the VDDIO supply voltage which is configurable as 3 3 2 5 1 8 V When MIIM is...

Страница 10: ...he KSZ8091RNA KSZ8091RND can be set to one of three different levels The jumper settings for these options are shown in Table 5 KSZ8091 VDDIO Voltage JP2 JP3 3 3V Close 1 2 or 2 3 Close pins 2 3 2 5V...

Страница 11: ...SZ8091RND EVAL Test Point Definition 4 6 RJ 45 Connector The RJ 45 Connector J5 connects to standard CAT 5 Ethernet cable to interface with 10Base T 100Base TX Ethernet devices 4 7 LED Indicators An L...