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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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DS2154 датащи(PDF) 37 Page - Dallas Semiconductor |
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DS2154 датащи(HTML) 37 Page - Dallas Semiconductor |
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37 / 87 page  DS2154 37 of 87 SR2: STATUS REGISTER 2 (Address=07 Hex) (MSB) (LSB) RMF RAF TMF SEC TAF LOTC RCMF TSLIP SYMBOL POSITION NAME AND DESCRIPTION RMF SR2.7 Receive CAS Multiframe. Set every 2 ms (regardless if CAS signaling is enabled or not) on receive multiframe boundaries. Used to alert the host that signaling data is available. RAF SR2.6 Receive Align Frame. Set every 250 µs at the beginning of align frames. Used to alert the host that Si and Sa bits are available in the RAF and RNAF registers. TMF SR2.5 Transmit Multiframe. Set every 2 ms (regardless if CRC4 is enabled) on transmit multiframe boundaries. Used to alert the host that signaling data needs to be updated. SEC SR2.4 1-Second Timer. Set on increments of 1 second based on RCLK. If CCR2.7=1, then this bit will be set every 62.5 ms instead of once a second. TAF SR2.3 Transmit Align Frame. Set every 250 µs at the beginning of align frames. Used to alert the host that the TAF and TNAF registers need to be updated. LOTC SR2.2 Loss of Transmit Clock. Set when the TCLK pin has not transitioned for one channel time (or 3.9 µs). Will force the LOTC pin high if enabled via TCR2.0. RCMF SR2.1 Receive CRC4 Multiframe. Set on CRC4 multiframe boundaries; will continue to be set every 2 ms on an arbitrary boundary if CRC4 is disabled. TSLIP SR2.0 Transmit Elastic Store Slip. Set when the elastic store has either repeated or deleted a frame of data. |
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