ZHCSEJ3B June 2015 – April 2020 ADS131E08S
PRODUCTION DATA.
The ADS131E08S provides flexible configuration control. The commands, summarized in Table 9, control and configure device operation. The commands are stand-alone, except for the register read and register write operations that require a second command byte to include additional data. CS can be taken high or held low between commands but must stay low for the entire command operation (including multibyte commands). System commands and the RDATA command are decoded by the ADS131E08S on the seventh SCLK falling edge. The register read and write commands are decoded on the eighth SCLK falling edge. Make sure to follow the SPI timing requirements when pulling CS high after issuing a command.
COMMAND | DESCRIPTION | FIRST BYTE | SECOND BYTE |
---|---|---|---|
SYSTEM COMMANDS | |||
WAKEUP | Wake-up from standby mode | 0000 0010 (02h) | |
STANDBY | Enter standby mode | 0000 0100 (04h) | |
RESET | Reset the device | 0000 0110 (06h) | |
START | Start or restart (synchronize) conversions | 0000 1000 (08h) | |
STOP | Stop conversions | 0000 1010 (0Ah) | |
OFFSETCAL | Channel offset calibration | 0001 1010 (1Ah) | |
DATA READ COMMANDS | |||
RDATAC | Enable read data continuous mode.
This mode is the default mode at power-up.(2) |
0001 0000 (10h) | |
SDATAC | Stop read data continuous mode | 0001 0001 (11h) | |
RDATA | Read data by command | 0001 0010 (12h) | |
REGISTER READ COMMANDS | |||
RREG | Read n nnnn registers starting at address r rrrr | 001r rrrr (2xh)(1) | 000n nnnn(1) |
WREG | Write n nnnn registers starting at address r rrrr | 010r rrrr (4xh)(1) | 000n nnnn(1) |