4

AX88796ALF

3-in-1 Local Bus Fast Ethernet Controller

Copyright © 2006-2013 ASIX Electronics Corporation. All rights reserved.

5.1.15 General Purpose Input Register (GPI) Offset 17H (Read) ............................................................................41

5.1.16 GPO and Control (GPOC) Offset 17H (Write)..............................................................................................41

5.1.17 SPP Data Port Register (SPP_DPR) Offset 18H (Read/Write) .....................................................................42

5.1.18 SPP Status Port Register (SPP_SPR) Offset 19H (Read) ..............................................................................42

5.1.19 SPP Command Port Register (SPP_CPR) Offset 1AH (Read/Write) ............................................................42

5.2 THE EMBEDDED PHY REGISTERS............................................................................................................................43

5.2.1 MR0 – Control Register Bit Descriptions ........................................................................................................43

5.2.2 MR1 – Status Register Bit Descriptions...........................................................................................................44

5.2.3 MR2, MR3 – Identification Registers (1 and 2) Bit Descriptions ....................................................................44

5.2.4 MR4 – Autonegotiation Advertisement Registers Bit Descriptions .................................................................45

5.2.5 MR5 – Autonegotiation Link Partner Ability (Base Page) Register Bit Descriptions .....................................45

5.2.6 MR5 –Autonegotiation Link Partner (LP) Ability Register (Next Page) Bit Descriptions ..............................46

5.2.7 MR6 – Autonegotiation Expansion Register Bit Descriptions .........................................................................46

6.0 CPU I/O READ AND WRITE FUNCTIONS.........................................................................................................47

6.1 ISA BUS TYPE ACCESS FUNCTIONS. .........................................................................................................................47

6.2 80186 CPU BUS TYPE ACCESS FUNCTIONS. .............................................................................................................47

6.3 MC68K CPU BUS TYPE ACCESS FUNCTIONS. ..........................................................................................................48

6.4 MCS-51 CPU BUS TYPE ACCESS FUNCTIONS. .........................................................................................................48

6.5 CPU ACCESS MII STATION MANAGEMENT FUNCTIONS. .........................................................................................49

7.0 ELECTRICAL SPECIFICATION AND TIMINGS .............................................................................................50

7.1 ABSOLUTE MAXIMUM RATINGS...............................................................................................................................50

7.2 GENERAL OPERATION CONDITIONS .........................................................................................................................50

7.3 DC CHARACTERISTICS.............................................................................................................................................50

7.4 A.C. TIMING CHARACTERISTICS ..............................................................................................................................51

7.4.1 XTAL / CLOCK................................................................................................................................................51

7.4.2 Reset Timing ....................................................................................................................................................51

7.4.3 ISA Bus Access Timing ....................................................................................................................................52

7.4.4 80186 Type I/O Access Timing ........................................................................................................................54

7.4.5 68K Type I/O Access Timing ...........................................................................................................................56

7.4.6 8051 Bus Access Timing ..................................................................................................................................58

7.4.7 MII Timing .......................................................................................................................................................60

8.0 PACKAGE INFORMATION..................................................................................................................................61

9.0 ORDERING INFORMATION................................................................................................................................62

APPENDIX A: APPLICATION NOTE.......................................................................................................................63

A.1 USING CRYSTAL 25MHZ.........................................................................................................................................63

A.2 USING OSCILLATOR 25MHZ ...................................................................................................................................63

APPENDIX B: POWER CONSUMPTION REFERENCE DATA ...........................................................................64

APPENDIX C: NOTICE OF AX88796A.....................................................................................................................65

REVISION HISTORY ...................................................................................................................................................67