SLV_RDBUF_CMD_VALUE | In the slave mode it is the value of read-buffer command. |
SLV_WRBUF_CMD_VALUE | In the slave mode it is the value of write-buffer command. |
SLV_RDSTA_CMD_VALUE | In the slave mode it is the value of read-status command. |
SLV_WRSTA_CMD_VALUE | In the slave mode it is the value of write-status command. |