docs: def ReadStatusBit(self, bit):
          ' Report given status bit '
          spi.SPI_write_byte(self.CS, 0x39)   # Read from address 0x19 (STATUS)
          spi.SPI_write_byte(self.CS, 0x00)
          data0 = spi.SPI_read_byte()           # 1st byte
          spi.SPI_write_byte(self.CS, 0x00)
          data1 = spi.SPI_read_byte()           # 2nd byte
          #print hex(data0), hex(data1)
          if bit > 7:                                   # extract requested bit
              OutputBit = (data0 >> (bit - 8)) & 1
          else:
              OutputBit = (data1 >> bit) & 1        
          return OutputBit