AM79C960KCW Advanced Micro Devices, AM79C960KCW Datasheet - Page 83
AM79C960KCW
Manufacturer Part Number
AM79C960KCW
Description
PCnetTM-ISA Single-Chip Ethernet Controller
Manufacturer
Advanced Micro Devices
Datasheet
1.AM79C960KCW.pdf
(127 pages)
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Register Summary
Ethernet Controller Registers (accessed via RDP
port) (continued)
Note:
Although the PCnet-ISA controller has many registers that can be accessed by software, most of these registers are intended for
debugging and production testing purposes only. The registers with a “Y” are the only registers that should be accessed by network
software.
RAP Addr
104–105
108–109
64–65
66–67
68–69
70–71
84–85
88–89
96–97
98–99
112
114
124
126
72
74
76
78
80
82
86
92
94
CSR104
CSR108
CSR112
CSR114
CSR124
CSR126
Symbol
CSR64
CSR66
CSR68
CSR70
CSR72
CSR74
CSR76
CSR78
CSR80
CSR82
CSR84
CSR86
CSR88
CSR92
CSR94
CSR96
CSR98
Width
32-bit
32-bit
32-bit
32-bit
16-bit
16-bit
16-bit
16-bit
16-bit
16-bit
32-bit
16-bit
32-bit
16-bit
16-bit
32-bit
32-bit
32-bit
32-bit
16-bit
16-bit
16-bit
16-bit
P R E L I M I N A R Y
Am79C960
Registers
User
Y
Y
Y
Y
Y
Y
Y
Y
NXBA: Next XMT Buffer Address
NXBC: Next XMT Status and Byte Count
XSTMP: XMT Status Temporary
RSTMP: RCV Status Temporary
RCVRC: RCV Ring Counter
XMTRC: XMT Ring Counter
RCVRL: RCV Ring Length
XMTRL: XMT Ring Length
DMABR: Burst Register
DMABAT: Bus Activity Timer
DMABA: Address Register
DMABC: Byte Counter/Register
Chip ID Register
RCON: Ring Length Conversion Register
XMTTDR: Transmit Time Domain
Reflectometry
SCR0: BIU Scratch Register 0
SCR1: BIU Scratch Register 1
SWAP:16-bit word/byte Swap Register
BMSCR: BMU Scratch Register
Missed Frame Count
Receive Collision Count
BMU Test Register
Reserved
Comments
AMD
1-425
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