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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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DP83261AVF датащи(PDF) 77 Page - National Semiconductor (TI) |
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DP83261AVF датащи(HTML) 77 Page - National Semiconductor (TI) |
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77 / 132 page  70 Signal Descriptions (Continued) 732 Signals All output signals change relative to the rising edge of the Local Byte Clock signal (provided by the Clock Distribution Device) and are active high 7321 Indication Data Symbol Pin IO Description MIP 73 O MAC Indicate Parity Odd parity on MID7 – 0 Only valid with Data and Status Indicators MID7 – 0 74 – 76 O MAC Indicate Data 79–83 Data Indicates data is being presented on MID7 – 0 between the rising edge of Frame Control Receive FCRCVD and the rising edge of one of the following signals Ending Delimiter Received (EDRCVD) Token Received (TKRCVD) Format Error (FOERROR) Frame Strip (FRSTRP) or MAC Reset (MACRST) Status Indicates Status Indicators are being presented on MID7 – 0 while Ending Delimiter Received (EDRCVD) or Token Received (TKRCVD) is asserted The Contents and interpretation of MID7 – 0 are given in Table 7-3 TABLE 7-3 MAC Indication Coding Contents Value MID(7 – 4) MID(3 – 0) Condition Data 0 0 0 Between RCSTART and 1 0 1 EDRCVD or 2 0 2 TKRCVD or FRSTRP or FOERROR or 254 F E MACRST 255 F F Status TT 5 5 with EDRCVD or TKRCVD TR 5 6 with EDRCVD TS 5 7 with EDRCVD TX 5 i 5 6 or 7 with EDRCVD nT 0 5 with EDRCVD RT 6 5 with EDRCVD RR 6 6 with EDRCVD RS 6 7 with EDRCVD ST 7 5 with EDRCVD SR 7 6 with EDRCVD SS 7 7 with EDRCVD undefined otherwise x x otherwise 77 |
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