Atmel Evaluation Kit AT91SAM9X25-EK AT91SAM9X25-EK Data Sheet

Product codes

AT91SAM9X25-EK

326

SAM9X25 [DATASHEET]

11054E–ATARM–10-Mar-2014

26.5 Application Example

26.5.1 Hardware Interface

Table 26-3

details the connections to be applied between the EBI pins and the external devices for each Memory

Controller.

Notes: 1. NWR1 enables upper byte writes. NWR0 enables lower byte writes.

2. NWRx enables corresponding byte x writes. (x = 0,1,2 or 3)
3. NBS0 and NBS1 enable respectively lower and upper bytes of the lower 16-bit word.
4. NBS2 and NBS3 enable respectively lower and upper bytes of the upper 16-bit word.
5. D24–31 and A20, A23–A25, NCS2, NCS4, NCS5 are multiplexed on PD15–PD31.

Table 26-3. EBI Pins and External Static Device Connections

Signals:
EBI_

Pins of the Interfaced Device

8-bit

Static Device

2 x 8-bit

Static Devices

16-bit

Static Device

4 x 8-bit

Static Devices

2 x 16-bit