8.10.2 Accessing 24-and 32-Bit Registers

For 24-and 32-bit registers, the read and write access is done in the same way as described for 16-bit registers, except there are two temporary registers for 24-bit registers and three temporary registers for 32-bit registers. The Most Significant Byte (MSB) must be written last when writing to the register, and the Least Significant Byte (LSB) must be read first when reading the register.