Crypto_Wac - Wide Arithmetic Configuration - Silicon Laboratories EFR32xG14 Wireless Gecko Reference Manual

31.6.2 CRYPTO_WAC - Wide Arithmetic Configuration

Offset
0x004
Reset
Access
Name
Bit Name
31:12 Reserved
11:10 RESULTWIDTH
Result-size for non-modulus instructions
Value
0
1
2
9:8 MULWIDTH
Number of bits to multiply on non-modulus multiply instruction
Value
0
1
2
7:5 Reserved
4 MODOP
Field type used for modular operations
Value
0
1
3:0 MODULUS
Modulus used for modular operations
Value
0
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Reset Access Description
To ensure compatibility with future devices, always write bits to 0. More information in
tions
0x0 RW Result Width
Mode Description
256BIT Results have 256 bits
128BIT Results have 128 bits
260BIT Results have 260 bits. Upper bits of result can be read through DDA-
TA0MSBS in CRYPTO_STATUS
0x0 RW Multiply Width
Mode Description
MUL256 Multiply 256 bits
MUL128 Multiply 128 bits
MULMOD Same number of bits as specified by MODULUS
To ensure compatibility with future devices, always write bits to 0. More information in
tions
0 RW Modular Operation Field Type
Mode Description
BINARY Modular operations use XOR as required by certain algorithms
REGULAR Modular operations use normal modular arithmetic, not XOR
0x0 RW Modular Operation Modulus
Mode Description
BIN256 Generic modulus. p = 2^256
Bit Position
Reference Manual
CRYPTO - Crypto Accelerator
1.2 Conven-
1.2 Conven-
Rev. 1.1 | 1049