AM79C975VCW datasheet(258/304 Pages) AMD

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258

Am79C973/Am79C975

P R E L I M INARY

Management Station IEEE Address 4 (MReg

Address 23)

This register is loaded from the EEPROM.

Bit No.

Name and Description

7:0

M_IEEE_ADR[39:32]

Default: 00h Read only, write has no effect.

Byte 4 of the Management Station IEEE Ad-

dress register. The Management Station IEEE

Address is the unique 48-bit address of the

station that is used as the management con-

sole in the network. This register can also be

used as general purpose 8-bit register that is

loaded from the EEPROM.

Management Station IEEE Address 5 (MReg

Address 24)

This register is loaded from the EEPROM.

Bit No.

Name and Description

7:0

M_IEEE_ADR[47:40]

Default: 00h Read only, write has no effect.

Byte 5 (the MSB) of the Management Station

IEEE Address register. The Management Sta-

tion IEEE Address is the unique 48-bit address

of the station that is used as the management

console in the network. This register can also

be used as general purpose 8-bit register that

is loaded from the EEPROM.

Management Station IP Address 0 (MReg Address

25)

This register is loaded from the EEPROM.

Bit No.

Name and Description

7:0

M_IP_ADR[7:0]

Default: 00h Read only, write has no effect.

Byte 0 (the LSB) of the Management Station IP

Address register. The Management Station IP

Address is the 32-bit address used in the IP

protocol header to address the station that

functions as the management console in the

network. This register can also be used as

general purpose 8-bit register that is loaded

from the EEPROM.

Management Station IP Address 1 (MReg Address

26)

This register is loaded from the EEPROM.

Bit No.

Name and Description

7:0

M_IP_ADR[15:8]

Default: 00h Read only, write has no effect.

Byte 1 of the Management Station IP Address

is the 32-bit address used in the IP protocol

header to address the station that functions as

the management console in the network. This

8-bit register that is loaded from the EEPROM.

Management Station IP Address 2 (MReg Address

27)

This register is loaded from the EEPROM.

Bit No.

Name and Description

7:0

M_IP_ADR[23:16]

Default: 00h Read only, write has no effect.

Byte 2 of the Management Station IP Address

is the 32-bit address used in the IP protocol

header to address the station that functions as

the management console in the network. This

8-bit register that is loaded from the EEPROM.

Management Station IP Address 3 (MReg Address

28)

This register is loaded from the EEPROM.

Bit No.

Name and Description

7:0

M_IP_ADR[31:24]

Default: 00hRead only, write has no effect.

Byte 3 (the MSB) of the Management Station

IP Address register. The Management Station

IP Address is the 32-bit address used in the IP

protocol header to address the station that

functions as the management console in the

network. This register can also be used as

general purpose 8-bit register that is loaded

from the EEPROM.

Device Status Registers

The following registers allow to determine the status of

the Am79C975 device as it relates to the normal mode

of operation (i.e. not related to the Serial Management

Am79C975 Unit).

SMIU Am79C975 Status (MReg Address 29)

This register is a shadow register of some bits in CSR0,

BCR19 and some bits in the PCI PCMCSR register.

Bit No.

Name and Description

7:6

POWERSTATE

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