Datasheet

6
SAM9X25 [DATASHEET]
11054E–ATARM–10-Mar-2014
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–NFD16 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 - HSMCI0–1
MCI0_CK, MCI1_CK Multimedia Card Clock I/O
MCI0_CDA, MCI1_CDA Multimedia Card Slot Command I/O
MCI0_DA0–MCI0_DA3 Multimedia Card 0 Slot A Data I/O
MCI1_DA0–MCI1_DA3 Multimedia Card 1 Slot A Data I/O
Table 3-1. Signal Description List (Continued)
Signal Name Function Type Active Level