ATEVK1105 Atmel, ATEVK1105 Datasheet - Page 412

• Manufacturer Part Number: ATEVK1105
• Description: KIT EVAL FOR AT32UC3A0
• Manufacturer: Atmel
• Series: AVR®32r
• Type: MCUr

Specifications of ATEVK1105

• Contents: Evaluation Board, Software and Documentation
• Processor To Be Evaluated: AT32UC3A0512
• Processor Series: AVR
• Data Bus Width: 32 bit
• Interface Type: USART, TWI, USB, SPI, Ethernet
• Operating Supply Voltage: 3.3 V
• Silicon Manufacturer: Atmel
• Core Architecture: AVR
• Core Sub-architecture: AVR UC3
• Silicon Core Number: AT32UC3A0512
• Silicon Family Name: AVR
• Kit Contents: Board CD Docs
• Rohs Compliant: Yes
• For Use With/related Products: AT32UC3A0
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

28.5
28.5.1
Figure 28-2. SDRAM Controller Connections to SDRAM Devices: 32-bit Data Bus Width
Figure 28-3. SDRAM Controller Connections to SDRAM Devices: 16-bit Data Bus Width
32058J–AVR32–04/11
Application Example
Hardware Interface
Controller
Controller
SDRAM
SDRAM
SDRAMC_A[0-12]
SDRAMC_A[0-12]
D0-D31
SDCKE
SDWE
NBS3
SDCS
SDCK
NBS0
NBS1
NBS2
D0-D31
SDCKE
RAS
CAS
BA0
BA1
SDWE
SDCS
SDCK
NBS0
NBS1
RAS
CAS
BA0
BA1
Figure 28-2
32-bit data bus width.
bit data bus width. It is important to note that these examples are given for a direct connection of
the devices to the SDRAM Controller, without External Bus Interface or PIO Controller
multiplexing.
D16-D23
D0-D7
SDWE
NBS0
SDWE
NBS2
shows an example of SDRAM device connection to the SDRAM Controller using a
D0-D7
SDWE
NBS0
D0-D7
CS
CLK
CKE
WE
RAS
CAS
DQM
D0-D7
CS
CLK
CKE
WE
RAS
CAS
DQM
D0-D7
CS
CLK
CKE
WE
RAS
CAS
DQM
SDRAM
SDRAM
2M x 8
2M x 8
SDRAM
2M x 8
A0-A9, A11
A0-A9, A11
Figure 28-3
A0-A9, A11
BA0
BA1
BA0
BA1
A10
A10
BA0
BA1
A10
SDRAMC_A[0-9], SDRAMC_A11
SDRAMC_A10
BA0
BA1
SDRAMC_A[0-9], SDRAMC_ A11
SDRAMC_A10
BA0
BA1
SDRAMC_A[0-9], SDRAMC_A11
SDRAMC_A10
BA0
BA1
shows an example of SDRAM device connection using a 16-
D24-D31
D8-D15
SDWE
SDWE
NBS3
NBS1
D8-D15
SDWE
NBS1
D0-D7
CS
CLK
CKE
WE
RAS
CAS
DQM
D0-D7
CS
CLK
CKE
WE
RAS
CAS
DQM
D0-D7
CS
CLK
CKE
WE
RAS
CAS
DQM
SDRAM
SDRAM
2M x 8
2M x 8
SDRAM
2M x 8
A0-A9, A11
A0-A9, A11
A0-A9, A11
BA0
BA1
A10
A10
BA0
BA1
BA0
BA1
A10
SDRAMC_A[0-9], SDRAMC_A11
SDRAMC_A10
BA0
BA1
SDRAMC_A[0-9], SDRAMC_A11
SDRAMC_A10
BA0
BA1
SDRAMC_A[0-9], SDRAMC_A11
SDRAMC_A10
BA0
BA1
AT32UC3A
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