For my setup, I am using a nucleo-L476RG and a NFC08A1. I am wanting to learn bare metal programming to really grasp micro controller programming. I have programmed some smaller bare metal programs, SPI, I2C, etc on the nucleo. Now, I am trying to interface with the NFC08A1. Looking at the ST25R3916B datasheet,
and reading through the SPI section I was a little confused by the read and write commands in the table 12 SPI operation modes. The other commands are pretty straight forward sending of bits. Can someone help me understand what A5 - A0 represent? I am thinking they are addresses to the different registers or referencing certain pins. For instance, in Table 2 A5 is referencing the SPI enable pin. In other areas of the data sheet for the SPI interface on Figure 16 SPI communication: writing multiple bytes it says write to the sclk falling edge data moved to address <A5-A0>. Thanks in advance.
