Datasheet

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SAM9N12/SAM9CN11/SAM9CN12 [DATASHEET]
11063K–ATARM–05-Nov-13
Note: 1. A switch, NFD0_ON_D16, enables the user to select NAND Flash path on D0-D7 or D16-D24 depending on
memory power supplies. This switch is located in the EBICSA register in the Bus Matrix user interface.
27.5.2 Connection Examples
Figure 27-2 shows an example of connections between the EBI and external devices.
Figure 27-2. EBI Connections to Memory Devices
RAS VDDIOM RAS RAS
CAS VDDIOM CAS CAS
SDWE VDDIOM WE WE
Pxx VDDNF CE
Pxx VDDNF RDY
Table 27-4. EBI Pins and External Device Connections (Continued)
Signals:
EBI_
Power supply Pins of the Interfaced Device
DDR2/LPDDR SDR/LPSDR NAND Flash
Controller DDRC SDRAMC NFC
EBI
D0-D31
A2-A15
RAS
CAS
SDCK
SDCKE
SDWE
A0/NBS0
2M x 8
SDRAM
D0-D7
A0-A9, A11
RAS
CAS
CLK
CKE
WE
DQM
CS
BA0
BA1
NWR1/NBS1
A1/NWR2/NBS2
NWR3/NBS3
NCS1/SDCS
D0-D7
D8-D15
A16/BA0
A17/BA1
A18-A25
A10
SDA10
SDA10
A2-A11, A13
NCS0
NCS2
NCS3
NCS4
NCS5
A16/BA0
A17/BA1
2M x 8
SDRAM
D0-D7
A0-A9, A11
RAS
CAS
CLK
CKE
WE
DQM
CS
BA0
BA1
A10 SDA10
A2-A11, A13
A16/BA0
A17/BA1
2M x 8
SDRAM
D0-D7
A0-A9, A11
RAS
CAS
CLK
CKE
WE
DQM
CS
BA0
BA1
D16-D23 D24-D31
A10
SDA10
A2-A11, A13
A16/BA0
A17/BA1
2M x 8
SDRAM
D0-D7
A0-A9, A11
RAS
CAS
CLK
CKE
WE
DQM
CS
BA0
BA1
A10
SDA10
A2-A11, A13
A16/BA0
A17/BA1
NBS0
NBS1
NBS3
NBS2
NRD/NOE
NWR0/NWE
128K x 8
SRAM
128K x 8
SRAM
D0-D7
D0-D7
A0-A16
A0-A16
A1-A17 A1-A17
CS CS
OE
WE
D0-D7
D8-D15
OE
WE
NRD/NOE
A0/NWR0/NBS0
NRD/NOE
NWR1/NBS1
SDWE
SDWE
SDWE
SDWE