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AM79C976 Datasheet(PDF) 253 Page - Advanced Micro Devices

Part # AM79C976
Description  PCnet-PRO??10/100 Mbps PCI Ethernet Controller
PDF  309 Pages
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Manufacturer  AMD [Advanced Micro Devices]
Direct Link  http://www.amd.com
Logo AMD - Advanced Micro Devices

AM79C976 Datasheet(HTML) 253 Page - Advanced Micro Devices

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8/01/00
Am79C976
253
P R E L I M INARY
REGISTER BIT CROSS REFERENCE
Table 120 shows the location and default value for each
programmable bit or field. The Offset column gives the
offset in hexadecimal of the register that contains the
bit. The codes in the Reset Type column have the fol-
lowing meanings:
In many cases, a particular bit can be accessed
through more than one register. For these bits, the
columns, “Alternate Reg.”, “Bit Num”, and “Alternate Bit
Name," give the alternate access paths.
7DEOH 5HJLVWHU%LW &URVV 5HIHUHQFH
H
Hardware Reset. The bit is set to its default
value when the RST pin is asserted (low).
E
EEPROM Reset. The bit is set to its default
value when before the EEPROM is read or after
an EEPROM read error is detected
P
Power On Reset. The bit is set to its default
value when power is first applied to the device.
Bit Name
Register
Bit
Num
Offset
(hex)
Default
Value
Reset
Type
Alternate
Register
Bit
Num
Bit Name
ANTST
TEST0
8
1A8
0
E,H
BCR32
15
ANTST
AP_PHY0_
ADDR
AUTOPOLL0
4:0
88
0
E,H
AP_PHY1_
ADDR
AUTOPOLL1
4:0
8A
0
E,H
AP_PHY1_
DFLT
AUTOPOLL1
5
8A
0
E,H
AP_PHY2_
ADDR
AUTOPOLL2
4:0
8C
0
E,H
AP_PHY2_
DFLT
AUTOPOLL2
5
8C
0
E,H
AP_PHY3_
ADDR
AUTOPOLL3
4:0
8E
0
E,H
AP_PHY3_
DFLT
AUTOPOLL3
5
8E
0
E,H
AP_PHY4_
ADDR
AUTOPOLL4
4:0
90
0
E,H
AP_PHY4_
DFLT
AUTOPOLL4
5
90
0
E,H
AP_PHY5_
ADDR
AUTOPOLL5
4:0
92
0
E,H
AP_PHY5_
DFLT
AUTOPOLL5
5
92
0
E,H
AP_PRE_
SUP1
AUTOPOLL1
6
8A
0
E,H
AP_PRE_
SUP2
AUTOPOLL2
6
8C
0
E,H



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