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DS2406P 数据表(PDF) 12 Page - Dallas Semiconductor |
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DS2406P 数据表(HTML) 12 Page - Dallas Semiconductor |
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12 / 30 page ![]() DS2406 12 of 30 Memory Function Flow Chart (continued) Figure 7 Spare Vertical AAh Read Status ? TA1(T7:T0), TA2 (T15:T8) Bus Master TX Address = (T15:T0) DS2406 sets Status F5h Channel Access ? S Y Y NN Master TX Reset ? Y increments DS2406 Address Counter End of Status Mem. ? Master TX Reset ? Y N N Y N Command, Address, Data Bus Master RX CRC16 of Y N Bus Master RX "1"s Master TX Reset ? Control Bytes 1, 2 Bus Master TX Ch.- from Status Memory Bus Master RX Data Presence Pulse DS2406 TX Y From Figure 7 2nd Part Master TX Reset ? Y N Master TX Reset ? R Control, Data (1st pass) Bus Master RX CRC16 of Command, CRC16 of Data (subsequent passes) CRC* Enabled ? CRC Due * ? increments DS2406 CRC Byte Counter N Y N Y Y N Master TX Reset ? Master TX Reset ? from PIOs Bus Master RX Data Channel F/F Bus Master TX Data to CRC Byte Counter DS2406 clears Y N R/W Toggle Enabled ? R/W Mode DS2406 toggles N Bus Master RX Channel Info Byte Reset Pulse Bus Master TX Presence Pulse DS2406 TX * See Channel Control Byte 1 and Figure 7A Mode ? Access Read Write * * Y N |
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