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AM79C970 Datasheet(PDF) 132 Page - Advanced Micro Devices

Part # AM79C970
Description  PCnetTM-PCI Single-Chip Ethernet Controller for PCI Local Bus
PDF  168 Pages
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Manufacturer  AMD [Advanced Micro Devices]
Direct Link  http://www.amd.com
Logo AMD - Advanced Micro Devices

AM79C970 Datasheet(HTML) 132 Page - Advanced Micro Devices

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P R E L I M I N A R Y
AMD
1-999
Am79C970
Control and Status Registers (continued)
Default Value
After
RAP Addr
Symbol
H_RESET
Comments
Use
65
CSR65
uuuu uuuu
NXBAU: Next XMT Buffer Address Upper
T
66
CSR66
uuuu uuuu
NXBC: Next XMT Byte Count
T
67
CSR67
uuuu uuuu
NXST: Next XMT Status
T
68
CSR68
uuuu uuuu
Reserved
T
69
CSR69
uuuu uuuu
Reserved
T
70
CSR70
uuuu uuuu
Reserved
T
71
CSR71
uuuu uuuu
Reserved
T
72
CSR72
uuuu uuuu
RCVRC: RCV Ring Counter
T
73
CSR73
uuuu uuuu
Reserved
T
74
CSR74
uuuu uuuu
XMTRC: XMT Ring Counter
T
75
CSR75
uuuu uuuu
Reserved
T
76
CSR76
uuuu uuuu
RCVRL: RCV Ring Length
S
77
CSR77
uuuu uuuu
Reserved
T
78
CSR78
uuuu uuuu
XMTRL: XMT Ring Length
S
79
CSR79
uuuu uuuu
Reserved
T
80
CSR80
uuuu E810
DMATCFW: DMA Transfer Counter and FIFO Threshold
S
81
CSR81
uuuu uuuu
Reserved
T
82
CSR82
uuuu 0000
DMABAT: Bus Activity Timer
S
83
CSR83
uuuu uuuu
Reserved
T
84
CSR84
uuuu uuuu
DMABAL: DMA Address Register Lower
T
85
CSR85
uuuu uuuu
DMABAU: DMA Address Register Upper
T
86
CSR86
uuuu uuuu
DMABC: Buffer Byte Counter
T
87
CSR87
uuuu uuuu
Reserved
T
88
CSR88
0242 0003
Chip ID Register Lower
T
89
CSR89
uuuu 0242
Chip ID Register Upper
T
91
CSR91
uuuu uuuu
Reserved
T
92
CSR92
uuuu uuuu
RCON: Ring Length Conversion
T
93
CSR93
uuuu uuuu
Reserved
T
94
CSR94
uuuu 0000
XMTTDR: Transmit Time Domain Reflectometry Count
T
95
CSR95
uuuu uuuu
Reserved
T
96
CSR96
uuuu uuuu
Reserved
T
97
CSR97
uuuu uuuu
Reserved
T
98
CSR98
uuuu uuuu
Reserved
T
99
CSR99
uuuu uuuu
Reserved
T
100
CSR100
uuuu 0200
MERRTO: Bus Time-Out
S
101
CSR101
uuuu uuuu
Reserved
T
102
CSR102
uuuu uuuu
Reserved
T
103
CSR103
uuuu 0105
Reserved
T
104
CSR104
uuuu uuuu
Reserved
T
105
CSR105
uuuu uuuu
Reserved
T
106
CSR106
uuuu uuuu
Reserved
T
107
CSR107
uuuu uuuu
Reserved
T



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