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ADBMS1818CSWAZ-R7 数据表(PDF) 70 Page - Analog Devices |
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ADBMS1818CSWAZ-R7 数据表(HTML) 70 Page - Analog Devices |
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70 / 92 page  Data Sheet ADBMS1818 MEMORY MAP analog.com Rev. B | 70 of 92 Table 72. Memory Map Bit Descriptions (Continued) Bit Description Values 1: thermal shutdown has occurred, THSD Bit cleared to 0 on read of Status Register Group B SCTx[x] S pin control bits 0000: drive S pin high (deasserted) 0001: send 1 high pulse on S pin 0010: send 2 high pulses on S pin 0011: send 3 high pulses on S pin 0100: send 4 high pulses on S pin 0101: send 5 high pulses on S pin 0110: send 6 high pulses on S pin 0111: send 7 high pulses on S pin 1xxx: drive S pin low (asserted) PWMx[x] PWM discharge control 0000: selects 0% discharge duty cycle if DCCx = 1 and watchdog timer has expired 0001: selects 6.7% discharge duty cycle if DCCx = 1 and watchdog timer has expired 0010: selects 13.3% discharge duty cycle if DCCx = 1 and watchdog timer has expired ... 1110: selects 93.3% discharge duty cycle if DCCx = 1 and watchdog timer has expired 1111: selects 100% discharge duty cycle if DCCx = 1 and watchdog timer has expired ICOMn Initial communication bits Write I2C 0110 0001 0000 0111 Start Stop Blank No trans- mit SPI 1000 1010 1001 1111 CSB low CSB falling edge CSB high No trans- mit Read I2C 0110 0001 0000 0111 Start from mas- ter stop from mas- ter SDA low be- tween bytes SDA high between bytes SPI 0111 0001 0000 0111 Dn I2C/SPI communication data byte Data transmitted (received) to (from) I2C/SPI slave device FCOMn Final communication control bits Write I2C 0000 1000 1001 Master ACK Master NACK Master NACK + stop SPI X000 1001 CSB high Read I2C 0000 0111 1111 0001 1001 ACK from master ACK from slave NACK from slave ACK from slave + stop from master NACK from slave + stop from master SPI 1111 1 Voltage equations use the decimal value of registers, 0 to 4095 for 12 bits and 0 to 65535 for 16 bits. |
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