Atmel ARM-Based Evaluation Kit AT91SAM9N12-EK AT91SAM9N12-EK Datenbogen
Produktcode
AT91SAM9N12-EK
6
SAM9N12/SAM9CN11/SAM9CN12 [DATASHEET]
11063K–ATARM–05-Nov-13
External Bus Interface - EBI
D0 -D15
Data Bus
I/O
D16 -D31
Data Bus
I/O
A0 - A25
Address Bus
Output
NWAIT
External Wait Signal
Input
Low
Static Memory Controller - SMC
NCS0 - NCS5
Chip Select Lines
Output
Low
NWR0 - NWR3
Write Signal
Output
Low
NRD
Read Signal
Output
Low
NWE
Write Enable
Output
Low
NBS0 - NBS3
Byte Mask Signal
Output
Low
NAND Flash Support
NFD0-NFD15
NAND Flash I/O
I/O
NANDCS
NAND Flash Chip Select
Output
Low
NANDOE
NAND Flash Output Enable
Output
Low
NANDWE
NAND Flash Write Enable
Output
Low
DDR2/SDRAM/LPDDR Controller
SDCK,#SDCK
DDR2/SDRAM differential clock
Output
SDCKE
DDR2/SDRAM Clock Enable
Output
High
SDCS
DDR2/SDRAM Controller Chip Select
Output
Low
BA[0..2]
Bank Select
Output
Low
SDWE
DDR2/SDRAM Write Enable
Output
Low
RAS - CAS
Row and Column Signal
Output
Low
SDA10
SDRAM Address 10 Line
Output
DQS[0..1]
Data Strobe
I/O
DQM[0..3]
Write Data Mask
Output
High Speed Multimedia Card Interface - HSMCI
MCI_CK
Multimedia Card Clock
I/O
MCI_CDA
Multimedia Card Slot Command
I/O
MCI_DA0 -
MCI_DA7
MCI_DA7
Multimedia Card Slot Data
I/O
Universal Synchronous Asynchronous Receiver Transmitter- USARTx
SCKx
USARTx Serial Clock
I/O
TXDx
USARTx Transmit Data
Output
RXDx
USARTx Receive Data
Input
RTSx
USARTx Request To Send
Output
CTSx
USARTx Clear To Send
Input
Table 3-1.
Signal Description List (Continued)
Signal Name
Function
Type
Active Level