AM79C973 Datasheet, PDF (216/304 Pages) Advanced Micro Devices – PCnet™-FAST III Single-Chip 10/100 Mbps PCI Ethernet Controller with Integrated PHY

PRELIMINARY
Control and Status Registers (Continued)
RAP
Default Value
Addr Symbol After H_RESET
Comments
Use
71
CSR71
uuuu uuuu Reserved
72
CSR72
uuuu uuuu RCVRC: RCV Ring Counter
T
73
CSR73
uuuu uuuu Reserved
74
CSR74
uuuu uuuu XMTRC: XMT Ring Counter
T
75
CSR75
uuuu uuuu Reserved
76
CSR76
uuuu uuuu RCVRL: RCV Ring Length
S
77
CSR77
uuuu uuuu Reserved
78
CSR78
uuuu uuuu XMTRL: XMT Ring Length
S
79
CSR79
uuuu uuuu Reserved
80
CSR80
uuuu 1410 DMATCFW: DMA Transfer Counter and FIFO Threshold
S
81
CSR81
uuuu uuuu Reserved
82
CSR82
uuuu uuuu Transmit Descriptor Pointer Address Lower
S
83
CSR83
uuuu uuuu Reserved
84
CSR84
uuuu uuuu DMABA: Address Register Lower
T
85
CSR85
uuuu uuuu DMABA: Address Register Upper
T
86
CSR86
uuuu uuuu DMABC: Buffer Byte Counter
T
87
CSR87
uuuu uuuu Reserved
262 5003
(Am79C973)
88
CSR88
Chip ID Register Lower
T
262 7003
(Am79C975)
89
CSR89
uuuu 262 Chip ID Register Upper
T
90
CSR90
uuuu uuuu Reserved
91
CSR91
uuuu uuuu Reserved
T
92
CSR92
uuuu uuuu RCON: Ring Length Conversion
T
93
CSR93
uuuu uuuu Reserved
94
CSR94
uuuu uuuu Reserved
95
CSR95
uuuu uuuu Reserved
96
CSR96
uuuu uuuu Reserved
97
CSR97
uuuu uuuu Reserved
98
CSR98
uuuu uuuu Reserved
99
CSR99
uuuu uuuu Reserved
100 CSR100
uuuu 0200 Bus Timeout
S
101 CSR101
uuuu uuuu Reserved
102 CSR102
uuuu uuuu Reserved
103 CSR103
uuuu 0105 Reserved
104 CSR104
uuuu uuuu Reserved
105 CSR105
uuuu uuuu Reserved
106 CSR106
uuuu uuuu Reserved
107 CSR107
uuuu uuuu Reserved
216
Am79C973/Am79C975