AX88852 datasheet(2/39 Pages) ASIX

2 / 39 page

AX88850

PRELIMINARY

ASIX ELECTRONICS CORPORATION

CONTENTS

1.0 AX88850 OVERVIEW ......................................................................................................................................... 5

1.1 GENERAL DESCRIPTION ....................................................................................................................................... 5

1.2 FEATURES ............................................................................................................................................................ 6

1.3 BLOCK DIAGRAM................................................................................................................................................. 7

1.4 PIN CONNECTION DIAGRAM FOR AX88851 (16MII + 2MII MODE) .................................................................... 8

1.5 PIN CONNECTION DIAGRAM FOR AX88852 (8MII + 2MII MODE) ...................................................................... 9

1.6 PIN CONNECTION DIAGRAM FOR AX88853 (8PCS + 2MII MODE) ................................................................... 10

1.7 PIN CONNECTION DIAGRAM FOR AX88854 (MANAGEMENT MODE).................................................................. 11

2.0 PIN DESCRIPTION........................................................................................................................................... 12

2.1A PCS INTERFACE ............................................................................................................................................. 12

2.1B MII INTERFACE (SHARE BUS MII GROUP 0 PORT & MII GROUP 1 PORT) ........................................................ 13

2.2 MII INTERFACE ( TWO INDIVIDUAL MII PORTS ) ............................................................................................... 14

2.3 STATION MANAGEMENT INTERFACE.................................................................................................................. 15

2.4 MANAGEMENT INFORMATION BASE (MIB) INTERFACE..................................................................................... 15

2.5 EXPANSION BUS INTERFACE .............................................................................................................................. 16

2.7 MISCELLANEOUS ............................................................................................................................................... 19

3.0 FUNCTIONAL DESCRIPTION ...................................................................................................................... 20

3.1 PCS INTERFACE LOGIC ...................................................................................................................................... 20

3.2 CARRIER INTEGRITY MONITOR STATE MACHINE ( AX88853 PCS MODE ONLY ).............................................. 20

3.3 REPEATER STATE MACHINE .............................................................................................................................. 20

3.4 JABBER STATE MACHINE ................................................................................................................................... 21

3.5 PARTITION STATE MACHINE.............................................................................................................................. 21

3.6 EXPANSION LOGIC(CASCADE INTERFACE)......................................................................................................... 22

3.7 MANAGEMENT LOGIC........................................................................................................................................ 22

3.8 MANAGEMENT COUNTERS................................................................................................................................. 23

3.9 STATION MANAGEMENT ACCESS INTERFACE .................................................................................................... 23

3.10 RID RECEIVE-TRANSMIT INTERFACE(DAISY CHAIN LOGIC) ........................................................................... 23

3.11 LED INTERFACE .............................................................................................................................................. 25

3.11.1 LED Status Driver wave-form for AX88851 ............................................................................................ 25

3.11.2 LED Status Driver wave-form for AX88852 ............................................................................................ 26

3.11.3 LED Status Driver wave-form for AX88853 ............................................................................................ 26

3.11.4 LED Status Driver wave-form for AX88854 ............................................................................................ 27

3.12 POWER ON CONFIGURATION(INITIAL SETTING) ............................................................................................... 27

4.0 REGISTERS........................................................................................................................................................ 28

4.1 PAGE 0 REGISTER MAP..................................................................................................................................... 28

4.2 PAGE 1 REGISTER MAP ..................................................................................................................................... 29

4.3 PAGE 2 REGISTER MAP..................................................................................................................................... 29

4.4 PAGE 3 REGISTER MAP..................................................................................................................................... 29

4.5 CONFIGURATION REGISTER (CONFIG) ............................................................................................................. 30

4.6 PAGE REGISTER (PAGE) ................................................................................................................................... 30

4.7 PARTITION STATUS REGISTER (PARTITION) ................................................................................................... 31

4.8 JABBER STATUS REGISTER (JABBER) .............................................................................................................. 31

4.9 ADMINISTRATION REGISTER (ADMIN) ............................................................................................................. 31

4.10 DEVICE ID REGISTER (DEVICEID) ................................................................................................................ 32

4.11 SILICON REVISION REGISTER ........................................................................................................................... 32

4.12 PORT MANAGEMENT COUNTER REGISTERS ..................................................................................................... 33

4.12.1 Short Event Counter Registers ................................................................................................................. 33

4.12.2 Late Event Counter Registers .................................................................................................................. 33

4.12.3 Collision Counter Registers ..................................................................................................................... 33

4.12.4 Auto-Partition Counter Registers ............................................................................................................ 33

4.12.5 False Carrier Counter Registers.............................................................................................................. 33

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