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AM79C976 Datasheet(PDF) 252 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) 252 Page - Advanced Micro Devices

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252
Am79C976
8/01/00
P R E L I M INARY
Bus Configuration Registers
Writes to those registers marked as “Reserved” will
have no effect. Reads from these locations will produce
undefined values.
RAP
Mnemonic
Default
Name
Programmability
User
EEPROM
0
MSRDA
0005h
Reserved
No
No
1
MSWRA
0005h
Reserved
No
No
2
MC
0000h
Miscellaneous Configuration
Yes
Yes
3
Reserved
N/A
Reserved
No
No
4
LED0
00C0h
LED0 Status
Yes
Yes
5
LED1
0094h
LED1 Status
Yes
Yes
6
LED2
1080h
LED2 Status
Yes
Yes
7
LED3
0081h
LED3 Status
Yes
Yes
8
Reserved
N/A
Reserved
No
No
9
FDC
0004h
Full-Duplex Control
Yes
Yes
10-15
Reserved
N/A
Reserved
No
No
16
IOBASEL
N/A
Reserved
No
No
17
IOBASEU
N/A
Reserved
No
No
18
BSBC
9000h
Burst and Bus Control
Yes
Yes
19
EECAS
0000h
EEPROM Control and Status
Yes
No
20
SWS
0000h
Software Style
Yes
No
21
Reserved
N/A
Reserved
No
No
22
PCILAT
1818h
PCI Latency
Yes
Yes
23
PCISID
0000h
PCI Subsystem ID
No
Yes
24
PCISVID
0000h
PCI Subsystem Vendor ID
No
Yes
25
SRAMSIZE
0000h
SRAM Size
Yes
Yes
26
SRAMBND
0000h
SRAM Boundary
Yes
Yes
27
Reserved
N/A
Reserved
No
No
28
EBADDRL
N/A
Expansion Bus Address Lower
Yes
No
29
EBADDRU
N/A
Expansion Bus Address Upper
Yes
No
30
EBDATA
N/A
Expansion Bus Data Port
Yes
No
31
STVAL
FFFFh
Software Timer Value
Yes
No
32
MIICAS
0400h
MII Control and Status
Yes
Yes
33
MIIADDR
N/A
MII Address
Yes
Yes
34
MIIMDR
N/A
MII Management Data
Yes
No
35
PCIVID
1022h
PCI Vendor ID
No
Yes
36
PMC_A
C802h
PCI Power Management Capabilities
(PMC) Alias Register
No
Yes
37
DATA0
0000h
PCI DATA Register Zero Alias Register
No
Yes
38
DATA1
0000h
PCI DATA Register One Alias Register
No
Yes
39
DATA2
0000h
PCI DATA Register Two Alias Register
No
Yes
40
DATA3
0000h
PCI DATA Register Three Alias Register
No
Yes
41
DATA4
0000h
PCI DATA Register Four Alias Register
No
Yes
42
DATA5
0000h
PCI DATA Register Five Alias Register
No
Yes
43
DATA6
0000h
PCI DATA Register Six Alias Register
No
Yes
44
DATA7
0000h
PCI DATA Register Seven Alias Register
No
Yes
45
PMR1
N/A
Pattern Matching Register 1
Yes
No
46
PMR2
N/A
Pattern Matching Register 2
Yes
No
47
PMR3
N/A
Pattern Matching Register 3
Yes
No



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