SAM3X8E Atmel Corporation, SAM3X8E Datasheet - Page 395

• Manufacturer Part Number: SAM3X8E
• Manufacturer: Atmel Corporation

24.4
Table 24-1.
11057A–ATARM–17-Feb-12
11057A–ATARM–17-Feb-12
Name
D[15:0]
A[23:0]
NCS[7:0]
NWR0/NWE
NRD
NWR1/NBS1
A0/NBS0
NWAIT
NCS[7:0]
NANDOE
NANDWE
NANDCLE
NANDALE
NANDRDY
SDCK
SDCKE
SDCS
BA[1:0]
SDWE
RAS - CAS
NBS[1:0]
SDA10
I/O Lines Description
I/O Lines Description
The connection of some signals through the Mux logic is not direct and depends on the Memory
Controller in use at the moment.
Table 24-2
Table 24-2.
EBI Pins
NWR1/NBS1
A0/NBS0
A1
Data Bus
Address Bus
Chip Select Lines
Write Signals
Read Signal
Write Enable/Upper Byte Select
External Wait Signal
Chip Select Lines
NAND Flash Output Enable
NAND Flash Write Enable
NAND Flash Command Line Enable
NAND Flash Address Line Enable
NAND Flash Ready/Busy
SDRAM Clock
SDRAM Clock Enable
SDRAM Controller Chip Select Line
Row and Column Signal
Function
Lower Byte Select
Bank Select
SDRAM Write Enable
Byte Mask Signals
SDRAM Address 10 Line
details the connections between the two Memory Controllers and the bus pins.
External Memory Bus Pins and Memory Controllers I/O Lines Connections
Static Memory Controller (SMC)
NAND Flash Controller (NFC)
SDR-SDRAM Controller
External Memory Bus
SDRAMC I/O Lines
NBS1
Not Supported
Not Supported
SMC I/O Lines
NWR1/NBS1
A0/NBS0
A1
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Type
Input
Input
I/O
SAM3X/A
SAM3X/A
Active Level
High
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
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