5
6174B–ATARM–07-Nov-05
AT91FR40162S Preliminary
4.
Block Diagram
Figure 4-1.
AT91FR40162S
EBI: External Bus Interface
ASB
Controller
Clock
AMBA Bridge
EBI User
Interface
PIO: Parallel I/O Controller
D0-D15
A1- A19
A0/NLB
NRD/NOE
NWR0/NWE
NWR1/NUB
NWAIT
NCS0
NCS1
P26/NCS2
P27/NCS3
P29/A21/CS6
P30/A22/CS5
P31/A23/CS4
MCKI
P25/MCKO
P12/FIQ
P9/IRQ0
P10/IRQ1
P11/IRQ2
P13/SCK0
P14/TXD0
P15/RXD0
P20/SCK1
P21/TXD1/NTRI
P22/RXD1
P16
P17
P18
P19
P23
P24/BMS
Reset
NRST
WD: Watchdog Timer
NWDOVF
P
I
O
TC: Timer
Counter
TC0
TC1
P0/TCLK0
P3/TCLK1
P6/TCLK2 P1/TIOA0
P2/TIOB0
P4/TIOA1
P5/TIOB1
TC2
P7/TIOA2
P8/TIOB2
AIC: Advanced
Interrupt Controller
USART0
USART1
2 PDC
Channels
2 PDC
Channels
PS: Power Saving
APB
Chip ID
P
I
O
A1 - A19
D0 - D15
NCSF
VDDIO
VDDIO
NRSTF
NBUSY
OE
WE
VPP
GND
CE
VCC
BYTE
RESET
RDY/BUSY
VPP
GND
MCU
AT91R40008
FLASH MEMORY
ARM7TDMI Core
ASB
TMS
TDO
TDI
TCK
Embedded
ICE
VDDIO
GND
SRAM
256K Bytes
A0 - A18
A20
P28/A20/NCS7
A0/NLB
A19
VDDCORE
D0 - D15