JAJSOX0A March 2024 – June 2024 ADS127L18
ADVANCE INFORMATION
SPI commands read and write register data for ADS127L1x configuration. Commands are two bytes in length (three bytes in CRC mode). The Register Map consists of a series of one-byte registers, accessible by read and write register operations. In CRC mode, the device interprets the two bytes immediately preceding the CRC byte for the CRC calculation. Table 7-18 shows the SPI command format.
DESCRIPTION | BYTE1 | BYTE2 | BYTE 3 (Optional CRC Mode) |
---|---|---|---|
Read register command | 00h + register address[6:0] | Don't care | CRC of byte 1 and byte 2 |
Write register command | 80h + register address [6:0] | Register data | CRC of byte 1 and byte 2 |
There is a special bit pattern used specifically to reset the ADC. See the Reset by SPI Input Pattern section for details.