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Prelminary
2004.11.12
BLOCK DIAGRAM
FR core
Serial IF
UART
(2ch)
INT/NMI
Authentication macro
Ext. IF/
PORT
MB91401
FR core : CPU, U-Timer, UART, Timer, Interrupt controller, DMAC, Bit search, External interrupt, Memory_IF,
Data-RAM, Cache, Bus controller
Peripheral resources : LAN, External_IF, GPIO, Card, Encryption/Authentication, I
is connected to bus of bus controller. )
E
D-RAM (8 KB)
R
B
Timer
INT
T
IPsec Accelerator
(IKE Accelerator)
DES/3DES
HMAC-MD5/SHA1
DH
External IF
GPIO
OSC
CLK
I-Cach (4 KB)
Cont
DMAC
PLL
DSU
LAN controller
10/100 Ethernet
MAC Controller
L3/L4 Filtering
USB Function
Rev2.0FS
CARD IF
2
I
C IF
MEMORY IF
FLASH
2
C, USB (Peripheral resource
MB91401
Crystal Unit
CLKIN
USB CLK (48 MHz)
DSU IF
PHY
USB IF
CompactFlash IF
2
I
C Bus
SRAM
29
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