Depending on the MODE settings, DATA is latched in different internal registers.
| MODE[3:0] | Symbol | Data |
|---|---|---|
| 0000 | CMDE | Command Register |
| 0001 | ADDR0 | Address Register LSBs |
| 0010 | ADDR1 | – |
| 0011 | ADDR2 | – |
| 0100 | ADDR3 | Address Register MSBs |
| 0101 | DATA | Data Register |
| Default | IDLE | No register |
When MODE is equal to CMDE, then a new command (strobed on DATA[15:0] signals) is stored in the command register.
| DATA[15:0] | Symbol | Command Executed |
|---|---|---|
| 0x0011 | READ | Read Flash |
| 0x0012 | WP | Write Page Flash |
| 0x0022 | WPL | Write Page and Lock Flash |
| 0x0032 | EWP | Erase Page and Write Page |
| 0x0042 | EWPL | Erase Page and Write Page then Lock |
| 0x0013 | EA | Erase All |
| 0x0014 | SLB | Set Lock Bit |
| 0x0024 | CLB | Clear Lock Bit |
| 0x0015 | GLB | Get Lock Bit |
| 0x0034 | SGPB | Set General Purpose NVM bit |
| 0x0044 | CGPB | Clear General Purpose NVM bit |
| 0x0025 | GGPB | Get General Purpose NVM bit |
| 0x0054 | SSE | Set Security Bit |
| 0x0035 | GSE | Get Security Bit |
| 0x001F | WRAM | Write Memory |
| 0x001E | GVE | Get Version |