at91sam9263 ATMEL Corporation, at91sam9263 Datasheet - Page 169

• Manufacturer Part Number: at91sam9263
• Description: At91 Arm Thumb Microcontrollers
• Manufacturer: ATMEL Corporation

20.2.2
Figure 20-2. Organization of the External Bus Interface 1
6249D–ATARM–20-Dec-07
Bus Matrix
Address Decoders
External Bus Interface 1
AHB
Figure 20-2
shows the organization of the External Bus Interface 1.
Chip Select
Assignor
APB
Controller
Controller
Memory
SDRAM
External Bus Interface 1
Static
User Interface
NAND Flash
Controller
Logic
ECC
AT91SAM9263 Preliminary
Logic
MUX
PIO
A21/NANDALE
A22/NANDCLE
D[15:0]
A0/NBS0
A1/NWR2/NBS2
A[15:2], A[20:18]
A16/BA0
A17/BA1
NCS0
NRD
NWR0/NWE
NWR1/NBS1
SDWE
SDA10
NANDOE
NANDWE
D[31:16]
NWR3/NBS3
NCS1/SDCS
NCS2/NANDCS
SDCK
SDCKE
NWAIT
RAS
CAS
169