Datasheet

 2015 Microchip Technology Inc. Preliminary DS60001320B-page 417
PIC32MZ Embedded Connectivity with Floating Point Unit (EF) Family
FIGURE 26-7: FORMAT OF BD_UPDPTR
FIGURE 26-8: FORMAT OF BD_MSG_LEN
FIGURE 26-9: FORMAT OF BD_ENC_OFF
Bit
Range
Bit
31/23/15/7
Bit
30/22/14/6
Bit
29/21/13/5
Bit
28/20/12/4
Bit
27/19/11/3
Bit
26/18/10/2
Bit
25/17/9/1
Bit
24/16/8/0
31-24 BD_UPDADDR<31:24>
23-16 BD_UPDADDR<23:16>
15-8 BD_UPDADDR<15:8>
7-0 BD_UPDADDR<7:0>
bit 31-0 BD_UPDADDR: UPD Address Location
The update address has the location where the CRDMA results are posted. The updated results are
the ICV values, key output values as needed.
Bit
Range
Bit
31/23/15/7
Bit
30/22/14/6
Bit
29/21/13/5
Bit
28/20/12/4
Bit
27/19/11/3
Bit
26/18/10/2
Bit
25/17/9/1
Bit
24/16/8/0
31-24 MSG_LENGTH<31:24>
23-16 MSG_LENGTH<23:16>
15-8 MSG_LENGTH<15:8>
7-0 MSG_LENGTH<7:0>
bit 31-0 MSG_LENGTH: Total Message Length
Total message length for the hash and HMAC algorithms in bytes. Total number of crypto bytes in
case of GCM algorithm (LEN-C).
Bit
Range
Bit
31/23/15/7
Bit
30/22/14/6
Bit
29/21/13/5
Bit
28/20/12/4
Bit
27/19/11/3
Bit
26/18/10/2
Bit
25/17/9/1
Bit
24/16/8/0
31-24 ENCR_OFFSET<31:24>
23-16 ENCR_OFFSET<23:16>
15-8 ENCR_OFFSET<15:8>
7-0 ENCR_OFFSET<7:0>
bit 31-0 ENCR_OFFSET: Encryption Offset
Encryption offset for the multi-task test cases (both encryption and authentication). The number of
AAD bytes in the case of GCM algorithm (LEN-A).