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