DM9000A
Ethernet Controller with General Processor Interface
10.1.1 Operating Conditions………………………………………………………………………………..………..…45
10.2 DC Electrical Characteristics (VDD = 3.3V)……………………………….…………………………..…………45
10.3 AC Electrical Characteristics & Timing Waveform……………………………………………………..…..……46
10.3.1 TP Interface…………………………………………………………………………………………..…………46
10.3.2 Oscillator/Crystal Timing……………………………………………………………………………….………46
10.3.3 Processor Register Read Timing…………………………………………………………………….….………46
10.3.4 Processor Register Write Timing………………………………………………………………….…….………47
10.3.5 EEPROM Interface Timing………………………………………………………………………….……..……48
11. Application Notes
………………………………………………………………………………….……………49
11.1 Network Interface Signal Routing………………………………………………………………….………………49
11.2 10Base-T/100Base-TX (Auto MDIX Application)…….…………………………………………….….…………49
11.3 10Base-T/100Base-TX (Non Auto MDIX Application)…………………………………………….…..…………50
11.4 Power Decoupling Capacitors…………………………………………………………..…………….……………51
11.5 Ground Plane Layout………………………………………………………………………………….……………52
11.6 Power Plane Partitioning……………………………………………………………………………………………53
11.7 Magnetics Selection Guide………………………………………………………………………………….………54
11.8 Crystal Selection Guide…………………………………………………………………………..…………………54
12. Package Information
………………………………………………………………………….……………..55
13. Ordering Information
………………………………………………………………………….……….……56
Preliminary datasheet
Version: DM9000A-DS-P03
Apr. 21, 2005
5
ETC [ ETC ]
