LAN9250 datasheet(3/421 Pages) MICROCHIP

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 2015 Microchip Technology Inc.

DS00001913A-page 3

LAN9250

1.0 Preface ............................................................................................................................................................................................ 4

2.0 General Description ........................................................................................................................................................................ 8

3.0 Pin Descriptions and Configuration ............................................................................................................................................... 10

4.0 Power Connections ....................................................................................................................................................................... 26

5.0 Register Map ................................................................................................................................................................................. 29

6.0 Clocks, Resets, and Power Management ..................................................................................................................................... 37

7.0 Configuration Straps ..................................................................................................................................................................... 54

8.0 System Interrupts .......................................................................................................................................................................... 62

9.0 Host Bus Interface ........................................................................................................................................................................ 74

10.0 SPI/SQI Slave ........................................................................................................................................................................... 121

11.0 Host MAC .................................................................................................................................................................................. 139

12.0 Ethernet PHY ............................................................................................................................................................................ 210

13.0 I2C Master EEPROM Controller ............................................................................................................................................... 282

14.0 IEEE 1588 ................................................................................................................................................................................. 298

15.0 General Purpose Timer & Free-Running Clock ........................................................................................................................ 380

16.0 GPIO/LED Controller ................................................................................................................................................................ 384

17.0 Miscellaneous ........................................................................................................................................................................... 392

18.0 JTAG ......................................................................................................................................................................................... 397

19.0 Operational Characteristics ....................................................................................................................................................... 399

20.0 Package Outlines ...................................................................................................................................................................... 414

21.0 Revision History ........................................................................................................................................................................ 417

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