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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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AM79C960KC датащи(PDF) 69 Page - Advanced Micro Devices |
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AM79C960KC датащи(HTML) 69 Page - Advanced Micro Devices |
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69 / 127 page  P R E L I M I N A R Y AMD 1-411 Am79C960 CSR50-51: Temporary Storage Bit Name Description 31-0 TMP1 Temporary Storage location. Read/write accessible only when STOP bit is set. CSR52-53: Temporary Storage Bit Name Description 31-0 TMP2 Temporary Storage location. Read/write accessible only when STOP bit is set. CSR54-55: Temporary Storage Bit Name Description 31-0 TMP3 Temporary Storage location. Read/write accessible only when STOP bit is set. CSR56-57: Temporary Storage Bit Name Description 31-0 TMP4 Temporary Storage location. Read/write accessible only when STOP bit is set. CSR58-59: Temporary Storage Bit Name Description 31-0 TMP5 Temporary Storage location. Read/write accessible only when STOP bit is set. CSR60-61: Previous Transmit Descriptor Address Bit Name Description 31-24 RES Reserved locations. Written as zero and read as undefined. 23-0 PXDA Contains the previous TDRE ad- dress pointer. The PCnet-ISA controller has the capability to stack multiple transmit frames. Read/write accessible only when STOP bit is set. CSR62-63: Previous Transmit Status and Byte Count Bit Name Description 31-24 PXST Previous Transmit Status. This field is a copy of bits 15:8 of TMD1 of the previous transmit descriptor. Read/write accessible only when STOP bit is set. 23-12 RES Reserved locations. Written as zero and read as undefined. Accessible only when STOP bit is set. 11-0 PXBC Previous Transmit Byte Count. This field is a copy of the BCNT field of TMD2 of the previous transmit descriptor. Read/write accessible only when STOP bit is set. CSR64-65: Next Transmit Buffer Address Bit Name Description 31-24 RES Reserved locations. Written as zero and read as undefined. 23-0 NXBA Contains the next transmit buffer address from which the PCnet-ISA controller will transmit an outgoing frame. Read/write accessible only when STOP bit is set. CSR66-67: Next Transmit Status and Byte Count Bit Name Description 31-24 NXST Next Transmit Status. This field is a copy of bits 15:8 of TMD1 of the next transmit descriptor. Read/write accessible only when STOP bit is set. 23-12 RES Reserved locations. Written as zero and read as undefined. Accessible only when STOP bit is set. 11-0 NXBC Next Transmit Byte Count. This field is a copy of the BCNT field of TMD2 of the next transmit descriptor. Read/write accessible only when STOP bit is set. |
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