Техническая Спецификация для Atmel Evaluation Kit for AT32uC3A0512, 32-Bit AVR Microcontroller Atmel ATEVK1105 ATEVK1105
Модели
ATEVK1105
368
AT32UC3A
27.5
Product Dependencies
27.5.1
EBI I/O Lines
The Static Memory Controller signals pass througth the EBI module where they are multiplexed.
The programmer must first configure the GPIO controller to assign the EBI pins corresponding to
SMC signals to their peripheral function. If I/O lines of the EBI corresponding to SMC
signals are not used by the application, they can be used for other purposes by the GPIO
Controller.
The programmer must first configure the GPIO controller to assign the EBI pins corresponding to
SMC signals to their peripheral function. If I/O lines of the EBI corresponding to SMC
signals are not used by the application, they can be used for other purposes by the GPIO
Controller.
27.6
Functionnal Description
27.6.1
Application Example
27.6.1.1
Hardware Interface
Figure 27-2.
SMC Connections to Static Memory Devices
27.6.2
External Memory Mapping
The SMC provides up to 26 address lines, A[25:0]. This allows each chip select line to address
up to 64 Mbytes of memory.
128K x 8
SRAM
D0-D7
CS
OE
WE
A0-A16
128K x 8
SRAM
D0-D7
CS
OE
WE
A0-A16
128K x 8
SRAM
D0-D7
CS
OE
WE
A0-A16
128K x 8
SRAM
D0-D7
CS
OE
WE
A0-A16
D0-D31
NWR1/NBS1
A0/NBS0
NWR0/NWE
A1/NWR2/NBS2
NWR3/NBS3
NCS0
NCS1
NCS2
NCS3
NCS5
NCS5
NCS4
NRD
NRD
NRD
NRD
A2-A25
Static Memory
Controller
A1/NWR2/NBS2
NWR0/NWE
NWR1/NBS1
NWR3/NBS3
D8-D15
D0-D7
D16-D23
D24-D31
A2-A18
A2-A18
A2-A18
A2-A18
32058K
AVR32-01/12