DM9161CI datasheet(2/47 Pages) DAVICOM

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DM9161CI

10/100 Mbps Fast Ethernet Physical Layer Single Chip Transceiver

Final

Version: DM9161CI-DS-F01

February 22, 2012

Content

1. GENERAL DESCRIPTION.................................................................................................................................................................. 4

2. FEATURES ............................................................................................................................................................................................ 4

3. BLOCK DIAGRAM ............................................................................................................................................................................... 5

4. PIN CONFIGURATION: ....................................................................................................................................................................... 6

4.1 48-PIN LQFP...................................................................................................................................................................................... 6

5. PIN DESCRIPTION............................................................................................................................................................................... 7

5.1 NORMAL MII INTERFACE .................................................................................................................................................................... 7

5.2 MEDIA INTERFACE .............................................................................................................................................................................. 9

5.3 LED INTERFACE................................................................................................................................................................................. 9

5.4 MODE.................................................................................................................................................................................................. 9

5.5 BIAS AND CLOCK ..............................................................................................................................................................................12

5.6 POWER.............................................................................................................................................................................................12

5.7 TABLE A (MEDIA TYPE SELECTION)..................................................................................................................................................12

5.8 PIN MAPS OF NORMAL MII, REDUCED MII, AND 10BASE-T GPSI (7-WIRED) MODE.....................................................................12

6. LED CONFIGURATION.....................................................................................................................................................................14

6.1 LED FUNCTION DESCRIPTION .........................................................................................................................................................15

7. FUNCTIONAL DESCRIPTION .........................................................................................................................................................16

7.1 MII INTERFACE..................................................................................................................................................................................16

7.2 100BASE-TX OPERATION................................................................................................................................................................18

8. MII REGISTER DESCRIPTION.........................................................................................................................................................25

8.1 BASIC MODE CONTROL REGISTER (BMCR) - 00............................................................................................................................26

8.2 BASIC MODE STATUS REGISTER (BMSR) - 01...............................................................................................................................27

8.3 PHY ID IDENTIFIER REGISTER #1 (PHYID1) - 02...........................................................................................................................28

8.4 PHY ID IDENTIFIER REGISTER #2 (PHYID2) - 03...........................................................................................................................28

8.5 AUTO-NEGOTIATION ADVERTISEMENT REGISTER (ANAR) - 04......................................................................................................29

8.6 AUTO-NEGOTIATION LINK PARTNER ABILITY REGISTER (ANLPAR) – 05.......................................................................................30

8.7 AUTO-NEGOTIATION EXPANSION REGISTER (ANER) - 06 ..............................................................................................................31

8.8 DAVICOM SPECIFIED CONFIGURATION REGISTER (DSCR) - 16..................................................................................................31

8.9 DAVICOM SPECIFIED CONFIGURATION AND STATUS REGISTER (DSCSR) - 17 .........................................................................33

8.10 10BASE-T CONFIGURATION/STATUS (10BTCSR) - 18..............................................................................................................34

8.12 (SPECIFIED CONFIG) REGISTER – 20 .............................................................................................................................................35

8.13 DAVICOM SPECIFIED INTERRUPT REGISTER – 21......................................................................................................................36

8.14 DAVICOM SPECIFIED RECEIVE ERROR COUNTER REGISTER (RECR) – 22.............................................................................36

8.15 DAVICOM SPECIFIED DISCONNECT COUNTER REGISTER (DISCR) – 23..................................................................................37

8.16 DAVICOM HARDWARE RESET LATCH STATE REGISTER (RLSR) – 24......................................................................................38

8.17 POWER SAVING CONTROL REGISTER (PSCR) – 29 ....................................................................................................................38

9. DC AND AC ELECTRICAL CHARACTERISTICS .......................................................................................................................39

9.1 ABSOLUTE MAXIMUM RATINGS (25

°C)............................................................................................................................................39

9.2 OPERATING CONDITIONS .................................................................................................................................................................39

9.3 DC ELECTRICAL CHARACTERISTICS (DVDD = 3.3V).....................................................................................................................40

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