am79c974 Advanced Micro Devices, am79c974 Datasheet - Page 122

• Manufacturer Part Number: am79c974
• Description: Pcnettm-scsi Combination Ethernet And Scsi Controller For Pci Systems
• Manufacturer: Advanced Micro Devices

Alternative Method for Initialization
of Ethernet Controller
The Ethernet portion of the PCnet-SCSI controller may
be initialized by performing I/O writes only. That is, data
can be written directly to the appropriate control and
status registers (CSR) instead of reading from the
Note:
The INIT bit must not be set or the initialization block will be accessed instead.
122
APPENDIX D
Control and Status Register
CSR24-25
CSR30-31
CSR10
CSR11
CSR12
CSR13
CSR14
CSR15
CSR47
CSR76
CSR78
CSR8
CSR9
Appendix D
initialization Block in memory. The registers that must
be written are shown in the table below. These register
writes are followed by writing the START bit in CSR0.
LADRF[31:16]
LADRF[47:32]
LADRF[63:48]
LADRF[15:0]
PADR[31:16]
PADR[47:32]
PADR[15:0]
Comment
POLLINT
RCVRL
XMTRL
BADR
BADX
Mode