DM9000A

Ethernet Controller with General Processor Interface

Final

5

Version: DM9000A-17-DS-F01

May 10, 2006

9.11.2 Reduced Transmit Power Mode ......................................................................................................................... 47

10. DC and AC Electrical Characteristics .......................................................................................................................... 48

10.1 Absolute Maximum Ratings ( 25

10.1.1 Operating Conditions ......................................................................................................................................... 48

10.2 DC Electrical Characteristics (VDD = 3.3V)............................................................................................................ 48

10.3 AC Electrical Characteristics & Timing Waveforms.................................................................................................. 49

10.3.1 TP Interface ........................................................................................................................................................ 49

10.3.2 Oscillator/Crystal Timing................................................................................................................................... 49

10.3.3 Processor I/O Read Timing ................................................................................................................................ 49

10.3.4 Processor I/O Write Timing ............................................................................................................................... 50

10.3.5 EEPROM Interface Timing................................................................................................................................ 51

11. Application Notes ............................................................................................................................................................ 52

11.1 Network Interface Signal Routing .............................................................................................................................. 52

11.2 10Base-T/100Base-TX Auto MDIX Application......................................................................................................... 52

11.3 10Base-T/100Base-TX ( Non Auto MDIX Transformer Application )........................................................................ 53

11.4 Power Decoupling Capacitors ................................................................................................................................... 54

11.5 Ground Plane Layout ................................................................................................................................................. 55

11.6 Power Plane Partitioning .......................................................................................................................................... 56

11.7 Magnetics Selection Guide......................................................................................................................................... 57

11.8 Crystal Selection Guide.............................................................................................................................................. 57

12. Package Information ...................................................................................................................................................... 58

13. Ordering Information .................................................................................................................................................... 59