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320
SAM9X25 [DATASHEET]
11054E–ATARM–10-Mar-2014
NFD0_ON_D16: NAND Flash Databus Selection
0: NAND Flash I/O are connected to D0–D15 (default).
1: NAND Flash I/O are connected to D16–D31.
DDR_MP_EN: DDR Multi-port Enable
0: DDR Multi-port is disabled (default).
1: DDR Multi-port is enabled, performance is increased. Warning: Use only with NFDO0_ON_D16 = 0. The system behavior is
unpredictable if ND0_ON_D16 is set to 1 at the same time.
Note:
EBI Chip Select 1 is to be assigned to the DDR2SDR Controller.
NFD0_ON_D16
Signals
VDDIOM
VDDNF
External Memory
0
NFD0 = D0,..., NFD15 = D15
1.8V
DDR2 or LP-DDR or LPSDR + NAND Flash 1.8V
0
NFD0 = D0,..., NFD15 = D15
3.3V
32-bit SDRAM + NAND Flash 3.3V
1
NFD0 = D16,..., NFD15 = D31
1.8V
DDR2 or LP-DDR or LPSDR + NAND Flash 1.8V
1
NFD0 = D16,..., NFD15 = D31
1.8V
3.3V
DDR2 or LP-DDR or LPSDR + NAND Flash 3.3V
1
NFD0 = D16,..., NFD15 = D31
3.3V
1.8V
16-bit SDR + NAND Flash 1.8V