Atmel ARM-Based Evaluation Kit AT91SAM9N12-EK AT91SAM9N12-EK Data Sheet
Product codes
AT91SAM9N12-EK
326
SAM9N12/SAM9CN11/SAM9CN12 [DATASHEET]
11063K–ATARM–05-Nov-13
27.8.7 8-bit NAND Flash with NFD0_ON_D16 = 1
27.8.7.1 Hardware Configuration
Figure 27-12. 8-bit NAND Flash with NFD0_ON_D16 = 1
27.8.7.2 Software Configuration
The following configuration has to be performed:
Set NFD0_ON_D16 = 1 in the EBI Chip Select Assignment Register located in the bus matrix memory space.
Assign the EBI CS3 to the NAND Flash by setting the bit EBI_CS3A in the EBI Chip Select Assignment Register.
Configure the PIOD controller to assign the required PIOD[23..0] to EBI function.
Reserve A21 / A22 for ALE / CLE functions. Address and Command Latches are controlled respectively by setting
to 1 the address bit A21 and A22 during accesses.
to 1 the address bit A21 and A22 during accesses.
Configure a PIO line as an input to manage the Ready/Busy signal.
Configure Static Memory Controller CS3 Setup, Pulse, Cycle and Mode accordingly to NAND Flash timings, the
data bus width and the system bus frequency.
data bus width and the system bus frequency.