Expand description
DCP work packet 1 status register
Modules§
- Reflects whether the next command pointer register must be loaded into the channel’s current descriptor pointer
- Reflects whether the next packet’s address is located following this packet’s payload.
- Reflects whether the calculated hash value must be compared to the hash provided in the payload.
- When the cipher block is enabled, this bit indicates whether the operation is encryption or decryption
- Reflects whether the cipher block must load the initialization vector from the payload for this operation
- When this bit is set (MEMCOPY and BLIT modes only), the DCP simply fills the destination buffer with the value found in the source address field
- Reflects whether the channel’s semaphore must be decremented at the end of the current operation
- Reflects whether the DCP must perform a blit operation
- Reflects whether the selected cipher function must be enabled for this operation.
- Reflects whether the selected hashing function must be enabled for this operation.
- Reflects whether the selected hashing function should be enabled for this operation.
- Reflects whether the current hashing block is the initial block in the hashing operation, so the hash registers must be initialized before the operation
- When the hashing is enabled, this bit controls whether the input or output data is hashed.
- Reflects whether the current hashing block is the final block in the hashing operation, so the hash padding must be applied by the hardware
- Reflects whether the DCP engine byteswaps the input data (big-endian data).
- Reflects whether the DCP engine wordswaps the input data (big-endian data).
- Reflects whether the channel must issue an interrupt upon the completion of the packet.
- Reflects whether the DCP engine swaps the key bytes (big-endian key).
- Reflects whether the DCP engine swaps the key words (big-endian key).
- Reflects whether a hardware-based key must be used
- Reflects whether the DCP engine byteswaps the output data (big-endian data).
- Reflects whether the DCP engine wordswaps the output data (big-endian data).
- When set, it indicates the payload contains the key
- Packet Tag
- This bit is used to test the channel semaphore transition to 0. FOR TEST USE ONLY!