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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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DS2155 датащи(PDF) 28 Page - Dallas Semiconductor |
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DS2155 датащи(HTML) 28 Page - Dallas Semiconductor |
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28 / 262 page  DS2156 28 of 262 Signal Name: CS Signal Description: Chip Select Signal Type: Input Must be low to read or write to the device. CS is an active-low signal. Signal Name: ALE(AS)/A7 Signal Description: Address Latch Enable (Address Strobe) or A7 Signal Type: Input In nonmultiplexed bus operation (MUX = 0), serves as the upper address bit. In multiplexed bus operation (MUX = 1), serves to demultiplex the bus on a positive-going edge. Signal Name: WR (R/W) Signal Description: Write Input(Read/Write) Signal Type: Input WR is an active-low signal. Signal Name: TUSEL Signal Description: TDM/UTOPIA Backplane Select Signal Type: Input Low to enable TDM backplane. High to enable UTOPIA backplane. 3.4 Extended System Information Bus Signal Name: ESIBS0 Signal Description: Extended System Information Bus Select 0 Signal Type: Input/Output Used to group two to eight DS2156s into a bus-sharing mode for alarm and status reporting. See Section 29 for more details. Signal Name: ESIBS1 Signal Description: Extended System Information Bus Select 1 Signal Type: Input/Output Used to group two to eight DS2156s into a bus-sharing mode for alarm and status reporting. See Section 29 for more details. Signal Name: ESIBRD Signal Description: Extended System Information Bus Read Signal Type: Input/Output Used to group two to eight DS2156s into a bus-sharing mode for alarm and status reporting. See Section 29 for more details. |
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