The Block Protect bits (BP2, BP1, BP0) define the size of the memory area that is protected against program and erase operations. The factory default setting for these bits is 0, which means that no memory array blocks are protected (see Table 5-1 and Table 5-2).
Table 5-5. Status Register 1| Bits (Bit Type) | Name and Function | Bit Type |
|---|
| 0 | BUSY - 1
indicates an internal program/erase; 0 indicates the
device is not busy | Read-only |
| 1 | WEL - 1 indicates
the device is write-enabled; 0 indicates the device is
not write-enabled | Read-only |
| 2 | BP0 - Block Protection | Volatile/Nonvolatile |
| 3 | BP1 - Block Protection | Volatile/Nonvolatile |
| 4 | BP2 - Block Protection | Volatile/Nonvolatile |
| 5 | TB - Top/Bottom Protection bit | Volatile/Nonvolatile |
| 6 | SEC - Sector Protection bit | Volatile/Nonvolatile |
| 7 | SRP0 - Status Register Protection bit | Volatile/Nonvolatile |
Table 5-6. Status Register 2| Volatile Bits | Name and Function | Bit Type |
|---|
| 0 | SRP1 - Status Register Protection bit | Volatile/Nonvolatile |
| 1 | IOC - I/O Configuration bit | Volatile/Nonvolatile |
| 2 | Reserved | Read-only |
| 3 | LB1 - Security Register Lock bits | Volatile/Nonvolatile |
| 4 | LB2 - Security Register Lock bits | Volatile/Nonvolatile |
| 5 | LB3 - Security Register Lock bits | Volatile/Nonvolatile |
| 6 | CMP - Complement Protect | Volatile/Nonvolatile |
| 7 | SUS - Suspend Status | Read-only |
Table 5-7. Status Register 3| Bits (Bit Type) | Name and Function | Bit Type |
|---|
| 0 | DC0 - Dummy Control | Volatile/Nonvolatile |
| 1 | DC1 - Dummy Control | Volatile/Nonvolatile |
| 2 | Reserved | Read-only |
| 3 | Reserved | Read-only |
| 4 | Reserved | Read-only |
| 5 | DRV0 - Output Driver Strength | Volatile/Nonvolatile |
| 6 | DRV1 - Output Driver Strength | Volatile/Nonvolatile |
| 7 | HLDRST - Reset#/Hold# Function Selection | Volatile/Nonvolatile |
