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ADBMS1818ASWZ-R7 bảng dữ liệu(PDF) 66 Page - Analog Devices |
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ADBMS1818ASWZ-R7 bảng dữ liệu(HTML) 66 Page - Analog Devices |
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66 / 89 page  Data Sheet ADBMS1818 MEMORY MAP analog.com Rev. 0 | 66 of 89 Table 70. Memory Map Bit Descriptions REV Revision code Device revision code RSVD Reserved bits Read: read back value can be 1 or 0 RSVD0 Reserved bits Read: read back value is always 0 RSVD1 Reserved bits Read: read back value is always 1 MUXFAIL Multiplexer self test result Read: 0 → multiplexer passed self test, 1 → multiplexer failed self test THSD Thermal shutdown status Read: 0 → thermal shutdown has not occurred, 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 con- trol 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 transmit SPI 1000 1010 1001 1111 CSB low CSB falling edge CSB high No transmit Read I2C 0110 0001 0000 0111 Start from master stop from master SDA low between bytes SDA high be- tween bytes SPI 0111 0001 0000 0111 Dn I2C/SPI communica- tion 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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