+=====-========-========-========-========-========-========-========-========+ | Bit| 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | |Byte | | | | | | | | | |=====+=======================================================================| | 0 | (MSB) | |- - -+--- Defective block address ---| | 3 | (LSB) | +=============================================================================+