DM9106 datasheet(49/92 Pages) DAVICOM

49 / 92 page

DM9106

3-port switch with PCI Interface

Preliminary datasheet

DM9106-DS-P01

July 9, 2009

7. PCI mode EEPROM Format

The first 48 words of Configuration EEPROM are loaded into the DM9106 after power-on-reset for the settings of the power

management, system ID and Ethernet address. The format of the EEPROM is as followed

name

Word offset

Description

Subsystem Vendor ID

The content will be transferred into the PCI configuration space 2CH bit

15~0.

Subsystem ID

The content will be transferred into the PCI configuration space 2CH bit

31~16.

RESERVED

2~3

Reserved

Auto_ Load_ Control

Bit3~0: “1010” to enable auto-load of PCI Vendor_ ID & Device_ ID.

PCI Vendor ID

When Word[4] bit 3~0=”1010”, this word will be loaded to PCI

Configuration space address 0 bit 15~0

PCI Device ID

When Word[4] bit 3~0=”1010”, this word will be loaded to PCI

Configuration space address 0 bit 31~16

PMC

Bit2~0: Directly mapping to bit[21,26:25] of the PCIPMR

Bit7~3: Directly mapping to bit[31:27] of the PCIPMR.

Bit 15~8: Reserved

RESERVED

8~9

Reserved

Ethernet Address

10~12

Word 10 low byte for address 0

Word 10 high byte for address 1

Word 11 low byte for address 2

Word 11 high byte for address 3

Word 12 low byte for address 4

Word 12 high byte for address 5

RESERVED

13~15

Reserved

Control

Bit 1:0=01: Accept setting of WORD 17,18

Bit 3:2=01: Accept setting of WORD 19~26

Bit 5:4=01: Accept setting of WORD 27~30

Bit 7:6=01: Accept setting of WORD 31

Bit 9:8=01: Accept setting of WORD 32~39

Bit 11:10=01: Accept setting of WORD 40~47

Bit 13:12 =01: Accept setting of WORD 49~52

Bit 15:14 Reserved

Switch Control 1

When word 16 bit 1:0 is “01”, after power on reset:

This word will be loaded to CR16 bit 15~0

Switch Control 2

When word 16 bit 1:0 is “01”, after power on reset:

This word will be loaded to CR16 bit 31~16

Port 0 Control 1