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AD5522JSVDZ датащи(PDF) 42 Page - Analog Devices |
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AD5522JSVDZ датащи(HTML) 42 Page - Analog Devices |
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42 / 60 page ![]() AD5522 Rev. A | Page 42 of 60 All codes not explicitly referenced in this table are reserved and should not be used (see Table 28). Table 19. Read and Write Functions of the AD5522 B28 B27 B26 B25 B24 B23 B22 B21 to B0 Selected Channel RD/WR PMU3 PMU2 PMU1 PMU0 MODE1 MODE0 Data bits CH3 CH2 CH1 CH0 Write Functions 0 0 0 0 0 0 0 Data bits Write to system control register (see Table 22) 0 0 0 0 0 0 1 Data bits Reserved 0 0 0 0 0 1 0 Data bits Reserved 0 0 0 0 0 1 1 All ones NOP (no operation) 0 0 0 0 0 1 1 Data bits other than all ones Reserved Write Addressed DAC or PMU Register 0 0 0 0 1 Select DAC or PMU register (see Table 18) Address and data bits CH0 0 0 0 1 0 CH1 0 0 0 1 1 CH1 CH0 0 0 1 0 0 CH2 0 0 1 0 1 CH2 CH0 0 0 1 1 0 CH2 CH1 0 0 1 1 1 CH2 CH1 CH0 0 1 0 0 0 CH3 0 1 0 0 1 CH3 CH0 0 1 0 1 0 CH3 CH1 0 1 0 1 1 CH3 CH1 CH0 0 1 1 0 0 CH3 CH2 0 1 1 0 1 CH3 CH2 CH0 0 1 1 1 0 CH3 CH2 CH1 0 1 1 1 1 CH3 CH2 CH1 CH0 Read Functions 1 0 0 0 0 0 0 All zeros Read from system control register 1 0 0 0 0 0 1 All zeros Read from comparator status register 1 0 0 0 0 1 0 X Reserved 1 0 0 0 0 1 1 All zeros Read from alarm status register Read Addressed DAC or PMU Register (Only One PMU or DAC Register Can Be Read at One Time) 1 0 0 0 1 Select PMU or DAC register (see Table 18) All zeros if reading PMU registers; DAC address plus all zeros if reading a DAC register DAC address (see Table 28) CH0 1 0 0 1 0 CH1 1 0 1 0 0 CH2 1 1 0 0 0 CH3 |
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