JAJSIU8B June 2015 – April 2020 ADS131E08S
The WREG command writes data to one or more device configuration registers. The WREG command is a two-byte command followed by the register data input. The command is constructed as follows:
First byte: 010r rrrr, where r rrrr is the starting register address.
Second byte: 000n nnnn, where n nnnn is the number of registers to write – 1.
After the two command bytes, the register data follows (in MSB-first format), as shown in Figure 44. For multiple register writes across reserved registers (0Dh–11h), these registers must be included in the register count and the default setting of the reserved register must be written. The WREG command can be issued at any time. However, because this command is a multibyte command, there are SCLK rate restrictions depending on how the SCLKs are issued; see Figure 1. CS must be low for the entire command.