DM9000B

Ethernet Controller with General Processor Interface

Final

2

Version: DM9000B-13-DS-F03

March 5, 2012

Content

1. General Description........................................................................................................... 6

2. Block Diagram.................................................................................................................... 6

3. Features.............................................................................................................................. 7

4. Pin Configuration............................................................................................................... 8

4.1 (16-bit mode) ................................................................................................................................................. 8

4.2 (8-bit mode) ................................................................................................................................................... 9

5. Pin Description ................................................................................................................ 10

5.1 Processor Interface ..................................................................................................................................... 10

5.1.1 8-bit mode pins......................................................................................................................................... 10

5.2 EEPROM Interface...................................................................................................................................... 11

5.3 Clock Interface ............................................................................................................................................ 11

5.4 LED Interface .............................................................................................................................................. 11

5.5 10/100 PHY/Fiber........................................................................................................................................ 11

5.6 Miscellaneous.............................................................................................................................................. 12

5.7 Power Pins .................................................................................................................................................. 12

5.8 strap pins table ............................................................................................................................................ 12

6. Vendor Control and Status Register Set ........................................................................ 13

6.1 Network Control Register (00H) .................................................................................................................. 14

6.2 Network Status Register (01H).................................................................................................................... 16

6.3 TX Control Register (02H)........................................................................................................................... 16

6.4 TX Status Register I ( 03H ) for packet index I............................................................................................ 17

6.5 TX Status Register II ( 04H ) for packet index I I......................................................................................... 17

6.6 RX Control Register ( 05H ) ........................................................................................................................ 18

6.7 RX Status Register ( 06H ).......................................................................................................................... 18

6.8 Receive Overflow Counter Register ( 07H )................................................................................................ 19

6.9 Back Pressure Threshold Register (08H) ................................................................................................... 19

6.10 Flow Control Threshold Register ( 09H ) .................................................................................................. 20

6.11 RX/TX Flow Control Register ( 0AH )........................................................................................................ 21

6.12 EEPROM & PHY Control Register ( 0BH ) ............................................................................................... 21

6.13 EEPROM & PHY Address Register ( 0CH ).............................................................................................. 22

6.14 EEPROM & PHY Data Register (EE_PHY_L:0DH

EE_PHY_H:0EH) ................................................. 22