IP108AL LF
Datasheet
3/48
Dec 31.2015
Copyright © 2015, IC Plus Corp. IP108A-DS-R04
FEATURES.................................................................................................................................................. 1
GENERAL DESCRIPTION ......................................................................................................................... 1
THE MAJOR DIFFERENCES BETWEEN IP108A AND IP108.................................................................. 2
REVISION HISTORY................................................................................................................................... 5
BLOCK DIAGRAM...................................................................................................................................... 6
PIN DIAGRAM ............................................................................................................................................ 7
1. PIN DESCRIPTION.......................................................................................................................... 8
2. REGISTERS DESCRIPTION ......................................................................................................... 17
MODE .....................................................................................................................................................................18
REGISTER0 : CONTROL REGISTER ...........................................................................................................................18
REGISTER1 : STATUS REGISTER...............................................................................................................................19
REGISTER2: PHY IDENTIFIER 1 REGISTER ..............................................................................................................20
REGISTER3 : PHY IDENTIFIER 2 REGISTER...........................................................................................................20
REGISTER4 : AUTO-NEGOTIATION ADVERTISEMENT REGISTER............................................................................20
REGISTER5 : AUTO-NEGOTIATION LINK PARTNER ABILITY REGISTER ....................................................................21
REGISTER6 : AUTO-NEGOTIATION EXPANSION REGISTER .......................................................................................22
REGISTER16 : PHY SPECIFICATION CONTROL REGISTER 1 (DEFAULT = 16’H118C)..............................................23
REGISTER18 : PHY STATUS MONITORING REGISTER............................................................................................25
REGISTER20 : PHY SPECIFICATION CONTROL REGISTER 2 (DEFAULT = 16’H700X) ................................................26
REGISTER23 : MDI/MDIX CONTROL REGISTER (DEFAULT = 16’HFF00) ..............................................................27
3. FUNCTIONAL DESCRIPTION....................................................................................................... 28
3.1 BASIC FUNCTION ........................................................................................................................................28
3.1.1 Auto negotiation.................................................................................................................................28
3.1.2 4B/5B encoder....................................................................................................................................28
3.1.3 5B/4B decoder....................................................................................................................................28
3.1.4 Scrambler/ de-scrambler....................................................................................................................28
3.1.5 Serial to Parallel/ Parallel to Serial ..................................................................................................28
3.1.6 Jabber ................................................................................................................................................28
3.1.7 Loop back..................................................................................................................................................28
3.1.8 Far End Fault Indication ...................................................................................................................29
3.1.9 Auto MDI/MDIX ................................................................................................................................29
3.1.10 Auto Power Saving (APS) and Power Down mode............................................................................29
3.2 I/O INTERFACE................................................................................................................................................30
3.2.1 SS-SMII Interface (Source Synchronous SMII) ..................................................................................30
SS-SMII APPLICATION BLOCK DIAGRAM.................................................................................................................30
3.2.2 SMI (Serial Management interface)...................................................................................................31
3.2.3 Guideline for the connection to a transformer...................................................................................32
3.2.4 Guideline for the connection to a fiber MAU.....................................................................................33 U
3.3 PIN SETTING FOR LED MODE AND DRIVING CAPABILITY ................................................................................34
3.3.1 LED Mode Setting..............................................................................................................................34
3.3.2 LED blinking setting time...................................................................................................................34
3.3.3 Serial stream sequence.......................................................................................................................34
3.3.4 Bi-color Configuration.......................................................................................................................36
3.4 I/O CHARACTERISTICS ADJUSTMENT ..........................................................................................................37
3.4.1 SS-SMII I/O driving capability adjustment. .......................................................................................37
3.4.2 LED pin driving capability adjustment ..............................................................................................37
3.4.3 MDIO pin driving capability adjustment ...........................................................................................37
4. OPERATIONAL DESCRIPTION.................................................................................................... 38
