Datasheet

26.8.1 Configuration Register
Name: CFG
Offset: 0x00
Reset: 0x0
Property: -
Bit 31 30 29 28 27 26 25 24
Access
Reset
Bit 23 22 21 20 19 18 17 16
Access
Reset
Bit 15 14 13 12 11 10 9 8
UALGO[2:0] UIHASH DUALBUFF ASCD
Access
R/W
Reset 0 0 0 0 0 0
Bit 7 6 5 4 3 2 1 0
BBC[3:0] SLBDIS EOMDIS WBDIS
Access
R/W R/W R/W R/W R/W R/W R/W
Reset 0 0 0 0 0 0 0
Bits 15:13 – UALGO[2:0] User SHA Algorithm
Value Name Description
0
SHA1 SHA1 algorithm processed
1
SHA256 SHA256 algorithm processed
4
SHA224 SHA224 algorithm processed
Other
- Reserved
Bit 12 – UIHASH User Initial Hash Value
Value Description
0
The secure hash standard provides the initial hash value.
1
The initial hash value is programmable. Field UALGO provides the SHA algorithm. The
ALGO field of the RCFGn structure member has no effect.
Bit 9 – DUALBUFF Dual Input Buffer
Value Description
0
Dual Input buffer mode is disabled.
1
Dual Input buffer mode is enabled (Better performances, higher bandwidth required on
system bus).
Bit 8 – ASCD Automatic Switch To Compare Digest
SAM D5x/E5x Family Data Sheet
ICM - Integrity Check Monitor
© 2019 Microchip Technology Inc.
Datasheet
DS60001507E-page 706