Datasheet

SAM9263 [DATASHEET]
Atmel-6249N-ATARM-SAM9263-Datasheet_14-Mar-16
168
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. EBI0 signals only
6. BEx: Byte x Enable (x = 0, 1, 2 or 3)
7. EBI1 signals only
NWR3/NBS3 – – – WE
(2)
NUB
(4)
BE3
(6)
Table 20-5. EBI Pins and External Devices Connections
Signals:
EBI0_, EBI1_
Pins of the Interfaced Device
SDRAMC SMC
SDRAM
CompactFlash
(EBI0 only)
CompactFlash
True IDE Mode
(EBI0 only) NAND Flash
D0–D7 D0–D7 D0–D7 D0–D7 I/O0–I/O7
D8–D15 D8–D15 D8–15 D8–15 I/O8–I/O15
(6)
D16–D31 D16–D31 – – –
A0/NBS0 DQM0 A0 A0 –
A1/NWR2/NBS2 DQM2 A1 A1 –
A2–A10 A[0:8] A[2:10] A[2:10] –
A11 A9 – – –
SDA10 A10 – – –
A12 – – – –
A13–A14 A[11:12] – – –
A15 – – – –
A16/BA0 BA0 – – –
A17/BA1 BA1 – – –
A18–A20 – – – –
A21/NANDALE – – – ALE
A22/NANDCLE – REG REG CLE
A23–A24
(3)
––––
A25
(3)
–CFRNW
(1)
CFRNW
(1)
–
NCS0 – – – –
NCS1/SDCS CS – – –
NCS2
(3)
––––
NCS2/NANDCS
(4)
––––
Table 20-4. EBI Pins and External Static Devices Connections (Continued)
Signals:
EBI0_, EBI1_
Pins of the SMC 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
Static
Devices
32-bit Static
Device