at91sam9263 ATMEL Corporation, at91sam9263 Datasheet - Page 168
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at91sam9263
Manufacturer Part Number
at91sam9263
Description
At91 Arm Thumb Microcontrollers
Manufacturer
ATMEL Corporation
Datasheet
1.AT91SAM9263.pdf
(1065 pages)
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20.2
20.2.1
Figure 20-1. Organization of the External Bus Interface 0
168
Block Diagram
AT91SAM9263 Preliminary
External Bus Interface 0
Bus Matrix
Address Decoders
AHB
Figure 20-1
shows the organization of the External Bus Interface 0.
Chip Select
Assignor
APB
Controller
Controller
Memory
SDRAM
External Bus Interface 0
Static
User Interface
CompactFlash
NAND Flash
Controller
Logic
Logic
ECC
Logic
MUX
PIO
D[15:0]
A0/NBS0
A1/NWR2/NBS2
A[15:2], A[20:18]
A16/BA0
A17/BA1
NCS0
NCS1/SDCS
NCS3/NANDCS
NRD/CFOE
NWR0/NWE/CFWE
NWR1/NBS1/CFIOR
NWR3/NBS3/CFIOW
SDCK
SDCKE
RAS
CAS
SDWE
SDA10
NANDOE
NANDWE
D[31:16]
A[25:23]
CFRNW
NCS4/CFCS0
NCS5/CFCS1
NCS2
NWAIT
CFCE1
CFCE2
A21/NANDALE
A22/NANDCLE
6249D–ATARM–20-Dec-07
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