Address offset: 0x684
Configure the HASH engine to automatically pad data at the end of the DMA transfer to complete the digest operation.
This feature can only be used if HASH_PAD is enabled, and must be disabled after a digest operation is completed. In the event of zero bytes input data length the hardware padding must be manually triggered using register HASH_PAD_FORCE.
| Bit number | 31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 | 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID | A | ||||||||||||||||||||||||||||||||||
| Reset 0x00000000 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |||
| ID | R/W | Field | Value ID | Value | Description | ||||||||||||||||||||||||||||||
| A |
W |
HWPAD |
Enable automatic padding in hardware. Disable this register when the digest operation is completed. |
||||||||||||||||||||||||||||||||
|
Disable |
0 |
Do not enable automatic hardware padding. |
|||||||||||||||||||||||||||||||||
|
Enable |
1 |
Enable automatic hardware padding. |
|||||||||||||||||||||||||||||||||