ATSAM3S-EK Atmel, ATSAM3S-EK Datasheet - Page 347
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ATSAM3S-EK
Manufacturer Part Number
ATSAM3S-EK
Description
KIT EVAL FOR ATSAM3S4C
Manufacturer
Atmel
Series
SAM3Sr
Type
MCUr
Specifications of ATSAM3S-EK
Contents
Board, Cables, Power Supply
Silicon Manufacturer
Atmel
Core Architecture
ARM
Core Sub-architecture
Cortex-M3
Kit Contents
Board
Features
TFT Colour LCD Display, SD/MMC Interface
Svhc
No SVHC (15-Dec-2010)
Rohs Compliant
Yes
For Use With/related Products
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATSAM3S-EK
Manufacturer:
Atmel
Quantity:
135
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22. Bus Matrix (MATRIX)
22.1
22.2
22.2.1
22.2.2
6500C–ATARM–8-Feb-11
Description
Embedded Characteristics
Matrix Masters
Matrix Slaves
The Bus Matrix implements a multi-layer AHB that enables parallel access paths between multi-
ple AHB masters and slaves in a system, which increases the overall bandwidth. Bus Matrix
interconnects 4 AHB Masters to 5 AHB Slaves. The normal latency to connect a master to a
slave is one cycle except for the default master of the accessed slave which is connected
directly (zero cycle latency).
The Bus Matrix user interface also provides a Chip Configuration User Interface with Registers
that allow to support application specific features.
The Bus Matrix of the SAM3S product manages 4 masters, which means that each master can
perform an access concurrently with others, to an available slave.
Each master has its own decoder, which is defined specifically for each master. In order to sim-
plify the addressing, all the masters have the same decodings.
Table 22-1.
The Bus Matrix of the SAM3S product manages 5 slaves. Each slave has its own arbiter, allow-
ing a different arbitration per slave.
Table 22-2.
Master 0
Master 1
Master 2
Master 3
Slave 0
Slave 1
Slave 2
Slave 3
Slave 4
List of Bus Matrix Masters
List of Bus Matrix Slaves
Internal SRAM
Internal ROM
Internal Flash
External Bus Interface
Peripheral Bridge
Cortex-M3 Instruction/Data
Cortex-M3 System
Peripheral DMA Controller (PDC)
CRC Calculation Unit
SAM3S Preliminary
347
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