at91sam9263 ATMEL Corporation, at91sam9263 Datasheet - Page 173
at91sam9263
Manufacturer Part Number
at91sam9263
Description
At91 Arm Thumb Microcontrollers
Manufacturer
ATMEL Corporation
Datasheet
1.AT91SAM9263.pdf
(1065 pages)
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20.3.1
Table 20-4.
Notes:
6249D–ATARM–20-Dec-07
Signals:
EBI0_, EBI1_
Controller
D0 - D7
D8 - D15
D16 - D23
D24 - D31
A0/NBS0
A1/NWR2/NBS2
A2 - A22
A23 - A25
NCS0
NCS1/SDCS
NCS2
NCS2/NANDCS
NCS3/NANDCS
NCS4/CFCS0
NCS5/CFCS1
NRD/CFOE
NWR0/NWE
NWR1/NBS1
NWR3/NBS3
(5)
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.
(5)
Hardware Interface
(5)
(5)
(7)
(5)
EBI Pins and External Static Devices Connections
8-bit Static
A[23:25]
D0 - D7
Device
A[2:22]
Table 20-4
for each Memory Controller.
WE
CS
CS
CS
CS
CS
CS
CS
OE
A0
A1
–
–
–
–
–
details the connections to be applied between the EBI pins and the external devices
2 x 8-bit
Devices
D8 - D15
A[22:24]
D0 - D7
A[1:21]
Static
WE
WE
CS
CS
CS
CS
CS
CS
CS
OE
A0
–
–
–
–
(1)
(1)
16-bit Static
Pins of the Interfaced Device
D8 - D15
A[22:24]
D0 - D7
Device
A[1:21]
NUB
NLB
WE
CS
CS
CS
CS
CS
CS
CS
OE
A0
–
–
–
SMC
AT91SAM9263 Preliminary
D16 - D23
D24 - D31
4 x 8-bit
Devices
D8 - D15
A[21:23]
D0 - D7
A[0:20]
Static
WE
WE
WE
WE
CS
CS
CS
CS
CS
CS
CS
OE
–
(2)
(2)
(2)
(2)
2 x 16-bit
D16 - D23
D24 - D31
Devices
A[21:23]
D0 - D7
D8 - 15
A[0:20]
NUB
NUB
Static
NLB
NLB
WE
CS
CS
CS
CS
CS
CS
CS
OE
(3)
(4)
(3)
(4)
32-bit Static
D16 - D23
D24 - D31
A[21:23]
D0 - D7
Device
D8 - 15
A[0:20]
BE0
BE2
BE1
BE3
WE
CS
CS
CS
CS
CS
CS
CS
OE
(6)
(6)
(6)
(6)
173
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