at91sam9263 ATMEL Corporation, at91sam9263 Datasheet - Page 171
at91sam9263
Manufacturer Part Number
at91sam9263
Description
At91 Arm Thumb Microcontrollers
Manufacturer
ATMEL Corporation
Datasheet
1.AT91SAM9263.pdf
(1065 pages)
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Table 20-2.
6249D–ATARM–20-Dec-07
Name
EBI1_D0 - EBI1_D31
EBI1_A0 - EBI1_A22
EBI1_NWAIT
EBI1_NCS0 - EBI1_NCS2
EBI1_NWR0 - EBI1_NWR3
EBI1_NRD
EBI1_NWE
EBI1_NBS0 - EBI1_NBS3
EBI1_NANDCS
EBI1_NANDOE
EBI1_NANDWE
EBI1_SDCK
EBI1_SDCKE
EBI1_SDCS
EBI1_BA0 - EBI1_BA1
EBI1_SDWE
EBI1_RAS - EBI1_CAS
EBI1_NWR0 - EBI1_NWR3
EBI1_NBS0 - EBI1_NBS3
EBI1_SDA10
EBI1 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 20-3 on page 171
EBI pins.
Table 20-3.
EBIx_NWR1/NBS1/CFIOR
EBIx_A0/NBS0
EBIx_A1/NBS2/NWR2
EBIx_A[11:2]
EBIx_SDA10
EBIx_A12
External Wait Signal
Chip Select Lines
Read Signal
Write Enable
NAND Flash Chip Select Line
NAND Flash Output Enable
NAND Flash Write Enable
SDRAM Clock Enable
SDRAM Controller Chip Select Line
Row and Column Signal
Function
Data Bus
Address Bus
Write Signals
Byte Mask Signals
SDRAM Clock
Bank Select
SDRAM Write Enable
Write Signals
Byte Mask Signals
SDRAM Address 10 Line
EBIx Pins
EBIx Pins and Memory Controllers I/O Lines Connections
EBI for NAND Flash Support
(1)
details the connections between the two Memory Controllers and the
SDRAM Controller
SMC
EBI
NBS1
Not Supported
Not Supported
SDRAMC_A[9:0]
SDRAMC_A10
Not Supported
SDRAMC I/O Lines
AT91SAM9263 Preliminary
NWR1/NUB
SMC_A0/NLB
SMC_A1
SMC_A[11:2]
Not Supported
SMC_A12
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Type
Input
I/O
SMC I/O Lines
(1)
Active Level
High
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
171
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