Samsung S5PC110 Manual page 1957

S5PC110_UM
Each security IP can be accessed through two access modes, namely:
• CPU mode
− For AES, DES, 3DES, SHA-1, MD5, and PKA
− Every input and output data should be carried out by the host processor.
• FIFO mode
− For AES, DES, 3DES, SHA-1, and MD5
− DMA supplies input data to each IP through FIFO.
− DMA drains output data from each IP (except SHA-1 and MD5) through FIFO.
− Block ciphers and hashes can share input data.
− Output data of block ciphers can be used as input of the hash.
AHB
AES
BRDMA
DES/ HASH/
3DES PRNG
BTDMA HRDMA
Figure 2-1
PKA SRAM
PKDMA
Security Sub-System Boundary
Block Diagram of SSS
2 ADVANCED CRYPTO ENGINE
Mux
FIFO I/F (unidir.)
Control
Bus Port
FeedCtrl
SRAM I/F
AHB
2-2