DM9620I datasheet(5/71 Pages) DAVICOM

5 / 71 page

DM9620/DM9620I

USB2.0 to Fast Ethernet Controller

Preliminary

Version: DM9620/DM9620I -15-DS-P02

December 26, 2011

7.2.13 MLT-3 to NRZI Decoder............................................................................................. 55

7.2.14 Clock Recovery Module .............................................................................................. 55

7.2.15 NRZI to NRZ ............................................................................................................... 55

7.2.16 Serial to Parallel........................................................................................................... 55

7.2.17 Descrambler ................................................................................................................. 55

7.2.18 Code Group Alignment................................................................................................ 56

7.2.19 4B5B Decoder.............................................................................................................. 56

7.2.20 10Base-T Operation ..................................................................................................... 56

7.2.21 Collision Detection ......................................................................................................56

7.2.22 Carrier Sense................................................................................................................ 56

7.2.23 Auto-Negotiation .........................................................................................................56

7.2.24 Auto-Negotiation (continued)...................................................................................... 56

8. DC and AC Electrical Characteristics................................................................................................. 57

8.1 Absolute Maximum Ratings ( 25

°C ) ....................................................................................... 57

8.1.1 Operating Conditions ..................................................................................................... 57

8.2 DC Electrical Characteristics (VDD = 3.3V) ........................................................................... 58

8.3 AC Electrical Characteristics & Timing Waveforms ............................................................... 58

8.3.1 TP Interface.................................................................................................................... 58

8.3.2 Oscillator/Crystal Timing ( 25

°C ) ................................................................................ 59

9. AC Timing waveform:........................................................................................................................ 60

9.1 Power On Reset Timing............................................................................................................ 60

9.2 EEPROM timing....................................................................................................................... 61

9.3 MII Management Timing.......................................................................................................... 62

9.4 MII TX timing........................................................................................................................... 63

9.5 MII RX timing .......................................................................................................................... 63

9.6 RMII TX timing........................................................................................................................ 64

9.7 RMII RX timing........................................................................................................................ 64

9.8 RevMII TX timing .................................................................................................................... 65

9.9 RevMII RX timing.................................................................................................................... 65

10 Magnetic and Crystal Selection Guide .............................................................................................. 66

10.1 Magnetic Selection Guide....................................................................................................... 66

10.2 Crystal Selection Guide .......................................................................................................... 66

11. Application circuit ............................................................................................................................ 68

12. Package Information ......................................................................................................................... 70

DM9620I Datasheet(PDF) 5 Page - Davicom Semiconductor, Inc.

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