AN983B Datasheet, PDF (43/91 Pages) List of Unclassifed Manufacturers – PCI/miniPCI-to-Ethernet LAN Controller

AN983B PCI/miPCI Fast Ethernet Controller with integrated PHY
effect.
Since the AN983B doesn’t supports PME# from D3cold, this
bit is defaulted to “0”.
14,13 DSCAL Data_Scale, indicates the scaling factor to be used when 00b
RO
interpreting the value of the Data register. This field is
required for any function that implements the Data register.
Otherwise, it’s optional.
The AN983B doesn’t support Data register and Data_Scale.
12~9 DSEL
Data_Select, This four bit field is used to select which data is 0000b
RO
to be reported through the Data register and Data_Scale
field. This field is required for any function that implements
the Data register.
The AN983B doesn’t support Data_select.
8
PME_En PME_En, “1” enables the AN983B to assert PME#. When “0” 0
RO
disables the PME# assertion.
This bit defaults to “0” if the function does not support PME#
generation from D3cold.
7~2 ---
Reserved.
000000b RO
1,0
PWRS
PowerState, This two bit field is used both to determine the 00b
RO
current power state of the AN983B and to set the AN983B
into a new power state. The definition of this field is given
below.
00b - D0
01b - D1
10b - D2
11b - D3hot
If software attempts to write an unsupported, optional state
to this field, the write operation must complete normally on
the bus, however the data is discarded a no state change
occurs.
CSR21 (offset = 94h) - WTDP, The current working transmit descriptor pointer
Bit # Name Descriptions
Default Val RW Type
31~0 WTDP The current working transmit descriptor pointer for driver’s XXXX
RO
double-checking or other special purpose.
CSR22 (offset = 98h) - WRDP, The current working receive descriptor pointer
Bit # Name Descriptions
Default Val RW Type
31~0 WRDP The current working receive descriptor pointer for driver’s XXXX
RO
double-checking or other special purpose.
CSR23 (offset = 9ch) - TXBR, transmit burst count / time-out
Bit # Name Descriptions
31~21 ---
Reserved
Default Val RW Type
Rev. 1.8
ADMtek Inc.
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