puf_status (CSU) Register Description
| Register Name | puf_status |
|---|---|
| Offset Address | 0x0000004010 |
| Absolute Address | 0x00FFCA4010 (CSU) |
| Width | 32 |
| Type | roRead-only |
| Reset Value | 0x00000000 |
| Description | PUF Status |
puf_status (CSU) Register Bit-Field Summary
| Field Name | Bits | Type | Reset Value | Description |
|---|---|---|---|---|
| overflow | 29:28 | roRead-only | 0x0 | Overflow, if bits are not 0. reduce SHUT[SOPEN] valiue. This value is only valid when STATUS[KEY_RDY] is asserted. |
| aux | 27:4 | roRead-only | 0x0 | During provisioning, auxiliary sundrome bits are stored here and must be written to the eFuse or boot image. During regeneration, AUX outputs auxiliary regeneration converges statistcs indicating whether convergence has ocurred during an interative recover process (iterative recovery is used in "4K" mode. This value is only valid when STATUS[KEY_RDY] is asserted. |
| key_rdy | 3 | roRead-only | 0x0 | Indicates that the key is ready |
| Reserved | 2 | roRead-only | 0x0 | Reserved |
| key_zero | 1 | roRead-only | 0x0 | Indicates that the PUF key has been zeroized |
| syn_wrd_rdy | 0 | roRead-only | 0x0 | Indicates a syndrome word is ready in the PUF_WORD register. |