at91cap7e ATMEL Corporation, at91cap7e Datasheet - Page 121

• Manufacturer Part Number: at91cap7e
• Description: Customizable Microcontroller
• Manufacturer: ATMEL Corporation

20.4.2
Figure 20-2. EBI Connections to Memory Devices
20.5
20.5.1
8549A–CAP–10/08
Product Dependencies
Connection Examples
I/O Lines
EBI
A1/NWR2/NBS2
NWR1/NBS1
NWR3/NBS3
NWR0/NWE
NCS1/SDCS
Figure 20-2
The pins used for interfacing the External Bus Interface may be multiplexed with the PIO lines.
The programmer must first program the PIO controller to assign the External Bus Interface pins
to their peripheral function. If I/O lines of the External Bus Interface are not used by the applica-
tion, they can be used for other purposes by the PIO Controller.
A0/NBS0
A16/BA0
A17/BA1
A18-A25
D0-D31
A2-A15
SDCKE
SDA10
SDCK
SDWE
NCS2
NCS3
NCS4
NCS5
NCS6
NCS7
NCS0
NRD
RAS
CAS
shows an example of connections between the EBI and external devices.
A0/NWR0/NBS0
NRD/NOE
D0-D7
D16-D23
D0-D7
NBS0
SDWE
SDWE
NBS2
D0-D7
CS
CLK
CKE
WE
RAS
CAS
DQM
D0-D7
CS
CLK
CKE
WE
RAS
CAS
DQM
D0-D7
CS
OE
WE
128K x 8
SRAM
SDRAM
SDRAM
2M x 8
2M x 8
A0-A9, A11
A0-A9, A11
A0-A16
BA0
BA1
A10
BA0
BA1
A10
A2-A11, A13
SDA10
A16/BA0
A17/BA1
A2-A11, A13
SDA10
A16/BA0
A17/BA1
A1-A17
D8-D15
NWR1/NBS1
NRD/NOE
D24-D31
D8-D15
SDWE
SDWE
NBS3
NBS1
D0-D7
CS
OE
WE
128K x 8
CS
CLK
CKE
WE
RAS
CAS
DQM
D0-D7
CS
CLK
CKE
WE
RAS
CAS
DQM
D0-D7
SRAM
SDRAM
2M x 8
SDRAM
2M x 8
A0-A16
A0-A9, A11
A0-A9, A11
BA0
BA1
A10
BA0
BA1
A10
A2-A11, A13
SDA10
A16/BA0
A17/BA1
A1-A17
A2-A11, A13
SDA10
A16/BA0
A17/BA1
AT91CAP7E
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