Samsung S5PC110 Manual page 2004

S5PC110_UM
2.3.2.36 PKA Control (PKA_SFR4, R/W, Address = 0xEA00_7010)
PKA_SFR4
FUNC_ID
Reserved
SEG_SIZE
Reserved
NOTE: Selecting the half-size and quarter-size segments is only possible in PKA-2 mode.
Bit
[0] Selects the function to be executed.
0 = Montgomery multiplication (A by B) [Default]
1 = Montgomery multiplication (A by 1)
[4:1] -
[6:5] Size of the memory segments.
00 = Full-size (that is, 256 bytes) [Default]
01 = Half-size (that is, 128 bytes)
10 = Quarter-size (that is, 64 bytes)
[31:7] -
Description
2 ADVANCED CRYPTO ENGINE
R/W Initial State
0
-
00
-
2-49