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SNAD01C Datasheet(PDF) 6 Page - SONiX Technology Company |
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SNAD01C Datasheet(HTML) 6 Page - SONiX Technology Company |
6 / 27 page SNAD01C 8-CHANNEL 8-BIT ADC (1) DIO is HiZ while START is HIGH. (2) The interface logic begins to interpret a command at the falling edge of the START signal. (3) The command ID (sent by Host) is received in the first three clock cycles from DIO. (4) The operations include Channel setting, ADC Reading, Digital Input Reading and Power Down. (5) DIO becomes to HiZ while START returns to HIGH. Command ID Operation 000 Power Down (0) 001 Channel Attribute Setting (1:Analog, 0:Digital) 010 Channel Wakeup Function Setting (1:Enable, 0:Disable) 011 Control Register Setting 100 ADC Conversion 101 Digital Input Reading 110 Reserved 111 Power Down (1) Table-2 Command Description Table a. 000/111: ADC enters into power down after receiving this command. b. 001: Set the attribute of each channel to be an analog or a digital input with the sequence of channel 7 to 0. (1:Analog; 0:Digital) c. 010: Set the wakeup function of each channel to be enabled or disabled with the sequence of channel 7 to 0. (1:Enable; 0:Disable) d. 011: Setting the values of control registers. e. 100: ADC starts to convert the analog signal of the selected channel after receiving this command. f. 101: ADC starts to read the digital input of every channel with the sequence of channel 7 to 0. g. 110: ADC enters into testing mode. Version: 1.5 July 31, 2003 6 |
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