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AM79C970 датащи(PDF) 131 Page - Advanced Micro Devices |
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AM79C970 датащи(HTML) 131 Page - Advanced Micro Devices |
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131 / 168 page ![]() AMD P R E L I M I N A R Y 1-998 Am79C970 Control and Status Registers (continued) Default Value After RAP Addr Symbol H_RESET Comments Use 22 CSR22 uuuu uuuu NRBAL: Next RCV Buffer Address Lower T 23 CSR23 uuuu uuuu NRBAU: Next RCV Buffer Address Upper T 24 CSR24 uuuu uuuu BADRL: Base Address of RCV Ring Lower S 25 CSR25 uuuu uuuu BADRU: Base Address of RCV Ring Upper S 26 CSR26 uuuu uuuu NRDAL: Next RCV Descriptor Address Lower T 27 CSR27 uuuu uuuu NRDAU: Next RCV Descriptor Address Upper T 28 CSR28 uuuu uuuu CRDAL: Current RCV Descriptor Address Lower T 29 CSR29 uuuu uuuu CRDAU: Current RCV Descriptor Address Upper T 30 CSR30 uuuu uuuu BADXL: Base Address of XMT Ring Lower S 31 CSR31 uuuu uuuu BADXU: Base Address of XMT Ring Upper S 32 CSR32 uuuu uuuu NXDAL: Next XMT Descriptor Address Lower T 33 CSR33 uuuu uuuu NXDAU: Next XMT Descriptor Address Upper T 34 CSR34 uuuu uuuu CXDAL: Current XMT Descriptor Address Lower T 35 CSR35 uuuu uuuu CXDAU: Current XMT Descriptor Address Upper T 36 CSR36 uuuu uuuu NNRDAL: Next Next Receive Descriptor Address Lower T 37 CSR37 uuuu uuuu NNRDAU: Next Next Receive Descriptor Address Upper T 38 CSR38 uuuu uuuu NNXDAL: Next Next Transmit Descriptor Address Lower T 39 CSR39 uuuu uuuu NNXDAU: Next Next Transmit Descriptor Address Upper T 40 CSR40 uuuu uuuu CRBC: Current RCV Byte Count T 41 CSR41 uuuu uuuu CRST: Current RCV Status T 42 CSR42 uuuu uuuu CXBC: Current XMT Byte Count T 43 CSR43 uuuu uuuu CXST: Current XMT Status T 44 CSR44 uuuu uuuu NRBC: Next RCV Byte Count T 45 CSR45 uuuu uuuu NRST: Next RCV Status T 46 CSR46 uuuu uuuu POLL: Poll Time Counter T 47 CSR47 uuuu uuuu POLLINT: Polling Interval S 48 CSR48 uuuu uuuu Reserved T 49 CSR49 uuuu uuuu Reserved T 50 CSR50 uuuu uuuu Reserved T 51 CSR51 uuuu uuuu Reserved T 52 CSR52 uuuu uuuu Reserved T 53 CSR53 uuuu uuuu Reserved T 54 CSR54 uuuu uuuu Reserved T 55 CSR55 uuuu uuuu Reserved T 56 CSR56 uuuu uuuu Reserved T 57 CSR57 uuuu uuuu Reserved T 58 CSR58 see reg. desc. SWS: Software Style S 59 CSR59 uuuu 0105 IR: IR Register T 60 CSR60 uuuu uuuu PXDAL: Previous XMT Descriptor Address Lower T 61 CSR61 uuuu uuuu PXDAU: Previous XMT Descriptor Address Upper T 62 CSR62 uuuu uuuu PXBC: Previous XMT Byte Count T 63 CSR63 uuuu uuuu PXST: Previous XMT Status T 64 CSR64 uuuu uuuu NXBA: Next XMT Buffer Address Lower T |
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