AM79C973KCW Advanced Micro Devices, AM79C973KCW Datasheet - Page 255
AM79C973KCW
Manufacturer Part Number
AM79C973KCW
Description
PCnet-FAST III Single-Chip 10/100 Mbps PCI Ethernet Controller with Integrated PHY
Manufacturer
Advanced Micro Devices
Datasheet
1.AM79C973KCW.pdf
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SMIU Vendor ID Register 1 (MReg Address 1)
This register is a shadow register of the PCI Vendor ID
Register bits 15:8. The PCI Vendor ID Register is
loaded from the EEPROM.
Bit No. Name and Description
7:0
SMIU Device ID Register 0 (MReg Address 2)
This register is a shadow register of the PCI Device ID
Register bits 7:0.
Bit No. Name and Description
7:0
SMIU Device ID Register 1 (MReg Address 3)
This register is a shadow register of the PCI Device ID
Register bits 15:8.
Bit No. Name and Description
7:0
SMIU Revision ID Register (MReg Address 4)
This register is a shadow register of the PCI Revision
ID Register.
Bit No. Name and Description
7:0
Default: 22h Read only, write has no effect.
These are the lower 8-bits of a register that
identifies AMD as the manufacturer of the
Am79C975 device.
MVENDOR_ID[15:8]
Default: 10h Read only, write has no effect.
These are the upper 8-bits of a register that
identifies AMD as the manufacturer of the
Am79C975 device.
MDEVICE_ID[7:0]
Default: 00h Read only, write has no effect.
These are the lower 8-bits of a register that
identifies the Am79C975 device within AMD’s
product line.
MDEVICE_ID[15:8]
Default: 20h Read only, write has no effect
These are the upper 8-bits of a register that
identifies the Am79C975 device within AMD’s
product line.
MREVISION_ID
Default: 40h Read only, write has no effect
This 8-bit register specifies the Am79C975
controller revision number. The upper 4 bits of
the register value are fixed to 4h, the lower four
P R E L I M I N A R Y
Am79C973/Am79C975
SMIU Subsystem Vendor ID Register 0 (MReg
Address 5)
This register is a shadow register of the PCI Subsystem
Vendor ID Register bits 7:0. The PCI Subsystem Ven-
dor ID Register is loaded from the EEPROM.
Bit No. Name and Description
7:0
SMIU Subsystem Vendor ID Register 1 (MReg
Address 6)
This register is a shadow register of the PCI Subsystem
Vendor ID Register bits 15:8. The PCI Subsystem Ven-
dor ID Register is loaded from the EEPROM.
Bit No. Name and Description
7:0
SMIU Subsystem ID Register 0 (MReg Address 7)
This register is a shadow register of the PCI Subsystem
ID Register bits 7:0. The PCI Subsystem ID Register is
loaded from the EEPROM.
Bit No. Name and Description
7:0
SMIU Subsystem ID Register 1 (MReg Address 8)
This register is a shadow register of the PCI Subsystem
Vendor ID Register bits 15:8. The PCI Subsystem ID
Register is loaded from the EEPROM.
Bit No. Name and Description
7:0
bits are silicon-revision dependent. The initial
revision value will be 40h.
MSUBVEN_ID[7:0]Default:
write has no effect
These are the lower 8-bits of a register that to-
gether with the Subsystem ID uniquely identi-
fies the add-in card or subsystem the
Am79C975 device is used in.
MSUBVEN_ID[15:8]
Default: 00h Read only, write has no effect
These are the upper 8-bits of a register that to-
gether with the Subsystem ID uniquely identi-
fies the add-in card or subsystem the
Am79C975 device is used in.
MSUBSYS_ID[7:0]Default:
write has no effect
These are the lower 8-bits of a register that to-
gether with the Subsystem Vendor ID uniquely
identifies the add-in card or subsystem the
Am79C975 device is used in.
MSUBSYS_ID[15:8]
Default: 00h Read only, write has no effect.
00hRead
00hRead
only,
only,
255
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