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DM9013

10/100 Mbps 3-port Ethernet Switch Controller with General Processor Interface

Davicom Semiconductor, Inc. 

DM9013

3-port switch with Processor Interface

8.10 10BASE-T Configuration/Status (10BTCSR) – 12H.................................................................................. 51

8.11 Power Down Control Register (PWDOR) – 13H........................................................................................ 51

8.12 (Specified config) Register – 14H .............................................................................................................. 52

8.13 DAVICOM Specified Receive Error Counter Register (RECR) – 16H ..................................................... 53

8.14 DAVICOM Specified Disconnect Counter Register (DISCR) – 17H ........................................................ 53

8.15 Power Saving Control Register (PSCR) – 1DH ......................................................................................... 53

9. FUNCTIONAL DESCRIPTION....................................................................................... 54

9.1 Processor bus and memory management function: ................................................................................. 54

9.1.1 Processor Interface .................................................................................................................................. 54

9.1.2 Direct Memory Access Control................................................................................................................. 54

9.1.3 Packet Transmission................................................................................................................................ 54

9.1.4 Packet Reception ..................................................................................................................................... 54

9.2 Switch function:............................................................................................................................................. 55

9.2.1 Address Learning ..................................................................................................................................... 55

9.2.2 Address Aging .......................................................................................................................................... 55

9.2.3 Packet Forwarding ................................................................................................................................... 55

9.2.4 Inter-Packet Gap (IPG) ............................................................................................................................ 55

9.2.5 Back-off Algorithm.................................................................................................................................... 55

9.2.6 Late Collision............................................................................................................................................ 55

9.2.7 Full Duplex Flow Control .......................................................................................................................... 55

9.2.8 Half Duplex Flow Control ......................................................................................................................... 55

9.2.9 Partition Mode .......................................................................................................................................... 55

9.2.10 Broadcast Storm Filtering....................................................................................................................... 56

9.2.11 Bandwidth Control.................................................................................................................................. 56

9.2.12 Port Monitoring Support ......................................................................................................................... 56

9.2.13 VLAN Support ........................................................................................................................................ 57

9.2.13.1 Port-Based VLAN................................................................................................................................ 57

9.2.13.2 802.1Q-Based VLAN........................................................................................................................... 57

Preliminary datasheet

7

DM9013-15-DS-P03

April 9, 2009

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