CTRL

STAT

CH0CMDPTR

CH0SEMA

CH0STAT

CH0OPTS

CH1CMDPTR

CH1SEMA

CH1STAT

CH1OPTS

CH2CMDPTR

CH2SEMA

CH2STAT

CH2OPTS

CH3CMDPTR

CH3SEMA

CH3STAT

CH3OPTS

CHANNELCTRL

CAPABILITY0

CAPABILITY1

DBGSELECT

DBGDATA

PAGETABLE

VERSION

CONTEXT

KEY

KEYDATA

PACKET0

PACKET1

PACKET2

PACKET3

PACKET4

PACKET5

PACKET6

CHANNEL_INTERRUPT_ENABLE : Per-channel interrupt enable bit
bits : 0 - 7 (8 bit)
access : read-write

Enumeration:

End of enumeration elements list.

ENABLE_CONTEXT_SWITCHING : Enable automatic context switching for the channels
bits : 21 - 21 (1 bit)
access : read-write

ENABLE_CONTEXT_CACHING : The software must set this bit to enable the caching of contexts between the operations
bits : 22 - 22 (1 bit)
access : read-write

GATHER_RESIDUAL_WRITES : The software must set this bit to enable the ragged writes to the unaligned buffers to be gathered between multiple write operations
bits : 23 - 23 (1 bit)
access : read-write

PRESENT_SHA : Indicates whether the SHA1/SHA2 functions are present.
bits : 28 - 28 (1 bit)
access : read-only

Enumeration:

End of enumeration elements list.

PRESENT_CRYPTO : Indicates whether the crypto (cipher/hash) functions are present.
bits : 29 - 29 (1 bit)
access : read-only

Enumeration:

End of enumeration elements list.

CLKGATE : This bit must be set to zero for a normal operation
bits : 30 - 30 (1 bit)
access : read-write

SFTRST : Set this bit to zero to enable a normal DCP operation
bits : 31 - 31 (1 bit)
access : read-write

IRQ : Indicates which channels have pending interrupt requests
bits : 0 - 3 (4 bit)
access : read-write

READY_CHANNELS : Indicates which channels are ready to proceed with a transfer (the active channel is also included)
bits : 16 - 23 (8 bit)
access : read-only

Enumeration:

End of enumeration elements list.

CUR_CHANNEL : Current (active) channel (encoded)
bits : 24 - 27 (4 bit)
access : read-only

Enumeration:

End of enumeration elements list.

OTP_KEY_READY : When set, it indicates that the OTP key is shifted from the fuse block and is ready for use.
bits : 28 - 28 (1 bit)
access : read-only

ADDR : Pointer to the descriptor structure to be processed for channel 0.
bits : 0 - 31 (32 bit)
access : read-write

INCREMENT : The value written to this field is added to the semaphore count in an atomic way such that the simultaneous software adds and DCP hardware substracts happening on the same clock are protected
bits : 0 - 7 (8 bit)
access : read-write

VALUE : This read-only field shows the current (instantaneous) value of the semaphore counter.
bits : 16 - 23 (8 bit)
access : read-only

HASH_MISMATCH : This bit indicates that a hashing check operation mismatched for the control packets that enable the HASH_CHECK bit
bits : 1 - 1 (1 bit)
access : read-write

ERROR_SETUP : This bit indicates that the hardware detected an invalid programming configuration (such as a buffer length that is not a multiple of the natural data size for the operation)
bits : 2 - 2 (1 bit)
access : read-write

ERROR_PACKET : This bit indicates that a bus error occurred when reading the packet or payload, or when writing the status back to the packet payload
bits : 3 - 3 (1 bit)
access : read-write

ERROR_SRC : This bit indicates that a bus error occurred when reading from the source buffer
bits : 4 - 4 (1 bit)
access : read-write

ERROR_DST : This bit indicates that a bus error occurred when storing to the destination buffer
bits : 5 - 5 (1 bit)
access : read-write

ERROR_PAGEFAULT : This bit indicates that a page fault occurred while converting a virtual address to a physical address
bits : 6 - 6 (1 bit)
access : read-write

ERROR_CODE : Indicates the additional error codes for some of the error conditions
bits : 16 - 23 (8 bit)
access : read-write

Enumeration:

End of enumeration elements list.

TAG : Indicates the tag from the last completed packet in the command structure
bits : 24 - 31 (8 bit)
access : read-only

RECOVERY_TIMER : This field indicates the recovery time for the channel
bits : 0 - 15 (16 bit)
access : read-write

ADDR : Pointer to the descriptor structure to be processed for channel 1.
bits : 0 - 31 (32 bit)
access : read-write

INCREMENT : The value written to this field is added to the semaphore count in an atomic way, such that the simultaneous software adds and the DCP hardware substracts happening on the same clock are protected
bits : 0 - 7 (8 bit)
access : read-write

VALUE : This read-only field shows the current (instantaneous) value of the semaphore counter.
bits : 16 - 23 (8 bit)
access : read-only

HASH_MISMATCH : This bit indicates that a hashing check operation is mismatched for the control packets that enable the HASH_CHECK bit
bits : 1 - 1 (1 bit)
access : read-write

ERROR_SETUP : This bit indicates that the hardware detected an invalid programming configuration (such as a buffer length that is not a multiple of the natural data size for the operation)
bits : 2 - 2 (1 bit)
access : read-write

ERROR_PACKET : This bit indicates that a bus error occurred when reading the packet or payload, or when writing the status back to the packet paylaod
bits : 3 - 3 (1 bit)
access : read-write

ERROR_SRC : This bit indicates that a bus error occurred when reading from the source buffer
bits : 4 - 4 (1 bit)
access : read-write

ERROR_DST : This bit indicates that a bus error occurred when storing to the destination buffer
bits : 5 - 5 (1 bit)
access : read-write

ERROR_PAGEFAULT : This bit indicates that a page fault occurred while converting a virtual address to a physical address
bits : 6 - 6 (1 bit)
access : read-write

ERROR_CODE : Indicates the additional error codes for some of the error conditions.
bits : 16 - 23 (8 bit)
access : read-write

Enumeration:

End of enumeration elements list.

TAG : Indicates the tag from the last completed packet in the command structure.
bits : 24 - 31 (8 bit)
access : read-only

RECOVERY_TIMER : This field indicates the recovery time for the channel
bits : 0 - 15 (16 bit)
access : read-write

ADDR : Pointer to the descriptor structure to be processed for channel 2.
bits : 0 - 31 (32 bit)
access : read-write

INCREMENT : The value written to this field is added to the semaphore count in an atomic way, such that the simultaneous software adds and DCP hardware substracts happening on the same clock are protected
bits : 0 - 7 (8 bit)
access : read-write

VALUE : This read-only field shows the current (instantaneous) value of the semaphore counter.
bits : 16 - 23 (8 bit)
access : read-only

HASH_MISMATCH : This bit indicates that a hashing check operation is mismatched for the control packets that enable the HASH_CHECK bit
bits : 1 - 1 (1 bit)
access : read-write

ERROR_SETUP : This bit indicates that the hardware detected an invalid programming configuration (such as a buffer length that is not a multiple of the natural data size for the operation)
bits : 2 - 2 (1 bit)
access : read-write

ERROR_PACKET : This bit indicates that a bus error occurred when reading the packet or payload, or when writing the status back to the packet paylaod
bits : 3 - 3 (1 bit)
access : read-write

ERROR_SRC : This bit indicates that a bus error occurred when reading from the source buffer
bits : 4 - 4 (1 bit)
access : read-write

ERROR_DST : This bit indicates that a bus error occurred when storing to the destination buffer
bits : 5 - 5 (1 bit)
access : read-write

ERROR_PAGEFAULT : This bit indicates that a page fault occurred while converting a virtual address to a physical address
bits : 6 - 6 (1 bit)
access : read-write

ERROR_CODE : Indicates additional error codes for some of the error conditions.
bits : 16 - 23 (8 bit)
access : read-write

Enumeration:

End of enumeration elements list.

TAG : Indicates the tag from the last completed packet in the command structure.
bits : 24 - 31 (8 bit)
access : read-only

RECOVERY_TIMER : This field indicates the recovery time for the channel
bits : 0 - 15 (16 bit)
access : read-write

ADDR : Pointer to the descriptor structure to be processed for channel 3.
bits : 0 - 31 (32 bit)
access : read-write

INCREMENT : The value written to this field is added to the semaphore count in an atomic way, such that the simultaneous software adds and DCP hardware substracts happening on the same clock are protected
bits : 0 - 7 (8 bit)
access : read-write

VALUE : This read-only field shows the current (instantaneous) value of the semaphore counter.
bits : 16 - 23 (8 bit)
access : read-only

HASH_MISMATCH : This bit indicates that a hashing check operation is mismatched for the control packets that enable the HASH_CHECK bit
bits : 1 - 1 (1 bit)
access : read-write

ERROR_SETUP : This bit indicates that the hardware detected an invalid programming configuration (such as a buffer length that is not a multiple of the natural data size for the operation)
bits : 2 - 2 (1 bit)
access : read-write

ERROR_PACKET : This bit indicates that a bus error occurred when reading the packet or payload or when writing the status back to the packet paylaod
bits : 3 - 3 (1 bit)
access : read-write

ERROR_SRC : This bit indicates that a bus error occurred when reading from the source buffer
bits : 4 - 4 (1 bit)
access : read-write

ERROR_DST : This bit indicates that a bus error occurred when storing to the destination buffer
bits : 5 - 5 (1 bit)
access : read-write

ERROR_PAGEFAULT : This bit indicates that a page fault occurred while converting a virtual address to a physical address
bits : 6 - 6 (1 bit)
access : read-write

ERROR_CODE : Indicates additional error codes for some of the error conditions.
bits : 16 - 23 (8 bit)
access : read-write

Enumeration:

End of enumeration elements list.

TAG : Indicates the tag from the last completed packet in the command structure.
bits : 24 - 31 (8 bit)
access : read-only

RECOVERY_TIMER : This field indicates the recovery time for the channel
bits : 0 - 15 (16 bit)
access : read-write

ENABLE_CHANNEL : Setting a bit in this field enables the DMA channel associated with it
bits : 0 - 7 (8 bit)
access : read-write

Enumeration:

End of enumeration elements list.

HIGH_PRIORITY_CHANNEL : Setting a bit in this field causes the corresponding channel to have high-priority arbitration
bits : 8 - 15 (8 bit)
access : read-write

Enumeration:

End of enumeration elements list.

CH0_IRQ_MERGED : Indicates that the interrupt for channel 0 must be merged with the other interrupts on the shared dcp_irq interrupt
bits : 16 - 16 (1 bit)
access : read-write

NUM_KEYS : Encoded value indicating the number of key-storage locations implemented in the design
bits : 0 - 7 (8 bit)
access : read-only

NUM_CHANNELS : Encoded value indicating the number of channels implemented in the design
bits : 8 - 11 (4 bit)
access : read-only

DISABLE_UNIQUE_KEY : Write to a 1 to disable the per-device unique key
bits : 29 - 29 (1 bit)
access : read-write

DISABLE_DECRYPT : Write to 1 to disable the decryption
bits : 31 - 31 (1 bit)
access : read-write

CIPHER_ALGORITHMS : One-hot field indicating which cipher algorithms are available
bits : 0 - 15 (16 bit)
access : read-only

Enumeration:

End of enumeration elements list.

HASH_ALGORITHMS : One-hot field indicating which hashing features are implemented in the hardware
bits : 16 - 31 (16 bit)
access : read-only

Enumeration:

End of enumeration elements list.

INDEX : Selects a value to read via the debug data register.
bits : 0 - 7 (8 bit)
access : read-write

Enumeration:

End of enumeration elements list.

DATA : Debug data
bits : 0 - 31 (32 bit)
access : read-only

ENABLE : Page table enable control
bits : 0 - 0 (1 bit)
access : read-write

FLUSH : Page table flush control. To flush the TLB, write this bit to 1 and then back to 0.
bits : 1 - 1 (1 bit)
access : read-write

BASE : Page table base address
bits : 2 - 31 (30 bit)
access : read-write

STEP : Fixed read-only value reflecting the stepping of the version of the design implementation.
bits : 0 - 15 (16 bit)
access : read-only

MINOR : Fixed read-only value reflecting the MINOR version of the design implementation.
bits : 16 - 23 (8 bit)
access : read-only

MAJOR : Fixed read-only value reflecting the MAJOR version of the design implementation.
bits : 24 - 31 (8 bit)
access : read-only

ADDR : Context pointer address
bits : 0 - 31 (32 bit)
access : read-write

SUBWORD : Key subword pointer
bits : 0 - 1 (2 bit)
access : read-write

INDEX : Key index pointer. The valid indices are 0-[number_keys].
bits : 4 - 5 (2 bit)
access : read-write

DATA : Word 0 data for the key. This is the least-significant word.
bits : 0 - 31 (32 bit)
access : read-write

ADDR : Next pointer register
bits : 0 - 31 (32 bit)
access : read-only

INTERRUPT : Reflects whether the channel must issue an interrupt upon the completion of the packet.
bits : 0 - 0 (1 bit)
access : read-only

DECR_SEMAPHORE : Reflects whether the channel's semaphore must be decremented at the end of the current operation
bits : 1 - 1 (1 bit)
access : read-only

CHAIN : Reflects whether the next command pointer register must be loaded into the channel's current descriptor pointer
bits : 2 - 2 (1 bit)
access : read-only

CHAIN_CONTIGUOUS : Reflects whether the next packet's address is located following this packet's payload.
bits : 3 - 3 (1 bit)
access : read-only

ENABLE_MEMCOPY : Reflects whether the selected hashing function should be enabled for this operation.
bits : 4 - 4 (1 bit)
access : read-only

ENABLE_CIPHER : Reflects whether the selected cipher function must be enabled for this operation.
bits : 5 - 5 (1 bit)
access : read-only

ENABLE_HASH : Reflects whether the selected hashing function must be enabled for this operation.
bits : 6 - 6 (1 bit)
access : read-only

ENABLE_BLIT : Reflects whether the DCP must perform a blit operation
bits : 7 - 7 (1 bit)
access : read-only

CIPHER_ENCRYPT : When the cipher block is enabled, this bit indicates whether the operation is encryption or decryption
bits : 8 - 8 (1 bit)
access : read-only

Enumeration:

End of enumeration elements list.

CIPHER_INIT : Reflects whether the cipher block must load the initialization vector from the payload for this operation
bits : 9 - 9 (1 bit)
access : read-only

OTP_KEY : Reflects whether a hardware-based key must be used
bits : 10 - 10 (1 bit)
access : read-only

PAYLOAD_KEY : When set, it indicates the payload contains the key
bits : 11 - 11 (1 bit)
access : read-only

HASH_INIT : Reflects whether the current hashing block is the initial block in the hashing operation, so the hash registers must be initialized before the operation
bits : 12 - 12 (1 bit)
access : read-only

HASH_TERM : Reflects whether the current hashing block is the final block in the hashing operation, so the hash padding must be applied by the hardware
bits : 13 - 13 (1 bit)
access : read-only

CHECK_HASH : Reflects whether the calculated hash value must be compared to the hash provided in the payload.
bits : 14 - 14 (1 bit)
access : read-only

HASH_OUTPUT : When the hashing is enabled, this bit controls whether the input or output data is hashed.
bits : 15 - 15 (1 bit)
access : read-only

Enumeration:

End of enumeration elements list.

CONSTANT_FILL : 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
bits : 16 - 16 (1 bit)
access : read-only

TEST_SEMA_IRQ : This bit is used to test the channel semaphore transition to 0. FOR TEST USE ONLY!
bits : 17 - 17 (1 bit)
access : read-only

KEY_BYTESWAP : Reflects whether the DCP engine swaps the key bytes (big-endian key).
bits : 18 - 18 (1 bit)
access : read-only

KEY_WORDSWAP : Reflects whether the DCP engine swaps the key words (big-endian key).
bits : 19 - 19 (1 bit)
access : read-only

INPUT_BYTESWAP : Reflects whether the DCP engine byteswaps the input data (big-endian data).
bits : 20 - 20 (1 bit)
access : read-only

INPUT_WORDSWAP : Reflects whether the DCP engine wordswaps the input data (big-endian data).
bits : 21 - 21 (1 bit)
access : read-only

OUTPUT_BYTESWAP : Reflects whether the DCP engine byteswaps the output data (big-endian data).
bits : 22 - 22 (1 bit)
access : read-only

OUTPUT_WORDSWAP : Reflects whether the DCP engine wordswaps the output data (big-endian data).
bits : 23 - 23 (1 bit)
access : read-only

TAG : Packet Tag
bits : 24 - 31 (8 bit)
access : read-only

CIPHER_SELECT : Cipher selection field
bits : 0 - 3 (4 bit)
access : read-only

Enumeration:

End of enumeration elements list.

CIPHER_MODE : Cipher mode selection field. Reflects the mode of operation for the cipher operations.
bits : 4 - 7 (4 bit)
access : read-only

Enumeration:

End of enumeration elements list.

KEY_SELECT : Key selection field
bits : 8 - 15 (8 bit)
access : read-only

Enumeration:

End of enumeration elements list.

HASH_SELECT : Hash Selection Field
bits : 16 - 19 (4 bit)
access : read-only

Enumeration:

End of enumeration elements list.

CIPHER_CFG : Cipher configuration bits. Optional configuration bits are required for the ciphers.
bits : 24 - 31 (8 bit)
access : read-only

ADDR : Source buffer address pointer
bits : 0 - 31 (32 bit)
access : read-only

ADDR : Destination buffer address pointer
bits : 0 - 31 (32 bit)
access : read-only

COUNT : Byte count register. This value is the working value and updates as the operation proceeds.
bits : 0 - 31 (32 bit)
access : read-only

ADDR : This regiser reflects the payload pointer for the current control packet.
bits : 0 - 31 (32 bit)
access : read-only