Atmel ARM-Based Evaluation Kit AT91SAM9N12-EK AT91SAM9N12-EK Data Sheet

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SAM9N12/SAM9CN11/SAM9CN12 [DATASHEET]

11063K–ATARM–05-Nov-13

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16-word Data Buffer

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4-address Address Buffer

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Software Control Drain

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DCache Write-back Buffer

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8 Data Word Entries

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One Address Entry

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Software Control Drain

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Tightly-coupled Memory (TCM)

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Separate Instruction and Data TCM Interfaces

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Provides a Mechanism for DMA Support

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Memory Management Unit (MMU)

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Access Permission for Sections

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Access Permission for Large Pages and Small Pages

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16 Embedded Domains 

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64 Entry Instruction TLB and 64 Entry Data TLB

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Memory Access

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8-, 16-, and 32-bit Data Types

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Separate AMBA AHB Buses for Both the 32-bit Data Interface and the 32-bit Instructions Interface

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Bus Interface Unit

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Arbitrates and Schedules AHB Requests

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Enables Multi-layer AHB to be Implemented 

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Increases Overall Bus Bandwidth

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Makes System Architecture Mode Flexible