Техническая Спецификация для Atmel Evaluation Kit for AT32uC3A0512, 32-Bit AVR Microcontroller Atmel ATEVK1105 ATEVK1105
Модели
ATEVK1105
148
AT32UC3A
20.5
Application Example
20.5.1
Hardware Interface
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. BEx: Byte x Enable (x = 0,1,2 or 3)
A[22:15]
Not Supported
SMC_A[22:15]
A[23]
Not Supported
SMC_A[23]
D[15:0]
D[15:0]
D[15:0]
Table 20-2.
EBI Pins and Memory Controllers I/O Lines Connections
EBI Pins
SDRAMC I/O Lines
SMC I/O Lines
Table 20-3.
EBI Pins and External Static Devices Connections
Signals
Pins of the Interfaced Device
8-bit Static
Device
2 x 8-bit
Static
Devices
16-bit Static
Device
Controller
SMC
D0 - D7
D0 - D7
D0 - D7
D0 - D7
D8 - D15
–
D8 - D15
D8 - D15
A0/NBS0
A0
–
NLB
A1/NWR2/NBS2
A1
A0
A0
A2 - A22
A[2:22]
A[1:21]
A[1:21]
A23
A[23]
A[22]
A[22]
NCS0
CS
CS
CS
NCS1/SDCS0
CS
CS
CS
NCS2
CS
CS
CS
NCS3
CS
CS
CS
NRD/NOE
OE
OE
OE
NWR0/NWE
WE
WE
(1)
WE
NWR1/NBS1
–
WE
(1)
NUB
NWR3/NBS3
–
–
–
32058K
AVR32-01/12