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AM79C971VCW 数据表(PDF) 235 Page - Advanced Micro Devices |
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AM79C971VCW 数据表(HTML) 235 Page - Advanced Micro Devices |
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235 / 265 page ![]() APPENDIX C Am79C971 C-1 Alternative Method for Initialization* The Am79C971 controller may be initialized by per- forming I/O writes only. That is, data can be written di- rectly to the appropriate control and status registers (CSR instead of reading from the 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. Notes: *The INIT bit must not be set or the initialization block will be accessed instead. **Needed only if SSIZE32 =0. Control and Status Register Comment CSR2 IADR[31:16]** CSR8 LADRF[15:0] CSR9 LADRF[31:16] CSR10 LADRF[47:32] CSR11 LADRF[63:48] CSR12 PADR[15:0] CSR13 PADR[31:16] CSR14 PADR[47:32] CSR15 Mode CSR24-25 BADR CSR30-31 BADX CSR47 TXPOLLINT CSR49 RXPOLLINT CSR76 RCVRL CSR78 XMTRL |
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