ATAVRDISPLAYX Atmel, ATAVRDISPLAYX Datasheet - Page 274
ATAVRDISPLAYX
Manufacturer Part Number
ATAVRDISPLAYX
Description
KIT EVAL XMEGA DISPLAY
Manufacturer
Atmel
Specifications of ATAVRDISPLAYX
Main Purpose
*
Embedded
*
Utilized Ic / Part
*
Primary Attributes
*
Secondary Attributes
*
Silicon Manufacturer
Atmel
Silicon Family Name
ATxmega
Kit Contents
Board
Features
Temperature Sensor, Mono Speaker Via Audio Amplifier
Svhc
No SVHC (15-Dec-2010)
Core Architecture
AVR
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
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Part Number
Manufacturer
Quantity
Price
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Part Number:
ATAVRDISPLAYX
Manufacturer:
Atmel
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135
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24.8.1
24.8.2
24.8.3
8077H–AVR–12/09
Supported Commands
3-Port EBI Configuration
4-Port EBI Configuration
The SDRAM commands that are supported by the EBI is listed in
Table 24-3.
When 3 EBI ports are available, SDRAM can be connected with 3-Port EBI configuration. When
this is done only 4-bit data bus is available, and any chip select must be controlled from software
using a general purpose I/O pin (Pxn).
Figure 24-8. 3-Port SDRAM configuration
When 4 EBI ports are available, SDRAM can be connected with 3-Port or 4-Port EBI configura-
tion. When 4-Port configuration is used, 8-bit data bus is available and all four chip selects will
be available.
Command
NOP
ACTIVE
READ
WRITE
PRECHARGE
AUTO REFRESH
LOAD MODE
SELF REFRESH
Supported SDRAM commands
EBI
Description
No Operation
Activate the selected bank and select the row.
Input the starting column address and begin the burst read operation.
Input the starting column address and begin the burst write operation.
Deactivate the open row of selected bank or all banks
Refresh one row of each bank
Activate self refresh mode
CAS/RE
BA[1:0]
A[11:8]
A[7:0]]
D[3:0]
DQM
CKE
RAS
CLK
Pxn
WE
CLK
CKE
BA[1:0]
DQM
WE
RAS
CAS
D[3:0]
A[7:0]
A[11:8]
CS
Table 24-3 on page
SDRAM
XMEGA A
274.
274
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