SAM3N0B Atmel Corporation, SAM3N0B Datasheet - Page 26
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SAM3N0B
Manufacturer Part Number
SAM3N0B
Description
Manufacturer
Atmel Corporation
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7. Processor and Architecture
7.1
7.2
7.3
7.4
26
ARM Cortex-M3 Processor
APB/AHB Bridge
Matrix Masters
Matrix Slaves
SAM3N Summary
The SAM3N4/2/1 product embeds one peripheral bridge:
The peripherals of the bridge are clocked by MCK.
The Bus Matrix of the SAM3N product manages 3 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 7-1.
The Bus Matrix of the SAM3N product manages 4 slaves. Each slave has its own arbiter, allow-
ing a different arbitration per slave.
Table 7-2.
Master 0
Master 1
Master 2
Slave 0
Slave 1
Slave 2
Slave 3
• Version 2.0
• Thumb-2 (ISA) subset consisting of all base Thumb-2 instructions, 16-bit and 32-bit.
• Harvard processor architecture enabling simultaneous instruction fetch with data load/store.
• Three-stage pipeline.
• Single cycle 32-bit multiply.
• Hardware divide.
• Thumb and Debug states.
• Handler and Thread modes.
• Low latency ISR entry and exit.
List of Bus Matrix Masters
List of Bus Matrix Slaves
Internal SRAM
Internal ROM
Internal Flash
Peripheral Bridge
Cortex-M3 Instruction/Data
Cortex-M3 System
Peripheral DMA Controller (PDC)
11011AS–ATARM–04-Oct-10
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