AM79C976 Advanced Micro Devices, AM79C976 Datasheet - Page 121
AM79C976
Manufacturer Part Number
AM79C976
Description
PCnet-PRO 10/100 Mbps PCI Ethernet Controller
Manufacturer
Advanced Micro Devices
Datasheet
1.AM79C976.pdf
(309 pages)
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Power State. This 2-bit field is
used both to determine the cur-
rent power state of a function and
to set the function into a new
power state.
P R E L I M I N A R Y
Am79C976
Offset 4Ah
Bit
7-0
Offset 4Bh
Note: All bits of this register are loaded from
EEPROM. The register is aliased to lower bytes of the
BCR37-44 for testing purposes.
Bit
7-0
Name
PMCSR_BSE
Name
DATA_REG The PCI Data Register is an 8-bit
The definition of the field values
is as follows:
The PCI PMCSR Bridge Support
Extensions Register is an 8-bit
register. PMCSR Bridge Support
Extensions are not supported.
This is a read-only register whose
content is 0.
The interpretation of the contents
of this register is described in the
PCI Bus Power Management In-
terface
1.1.
read, but their contents have no
effect on the operation of the
device.
read-only register that is used as
a window into an array of 8 ten-bit
PCIDATA registers. The value
read from this register is the 8
least significant bits of the PCI-
DATA
DATA_SEL field of the PMCSR
(offset 48h in PCI Configuration
Space). The two most significant
bits of the selected PCIDATA
register
DATA_SCALE
PMCSR.
00b - D0
01b - D1
10b - D2
11b - D3
These bits can be written and
Read/write accessible.
Description
Description
register
Specification,
are
read
field
selected
from
of
Version
121
the
the
by
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