Atmel Evaluation Kit AT91SAM9M10-G45-EK AT91SAM9M10-G45-EK Datenbogen
Produktcode
AT91SAM9M10-G45-EK
27
SAM9M10 [SUMMARY]
6355ES–ATARM–12-Mar-13
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Static Memory Controller
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DDR2/SDRAM Controller
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SLC Nand Flash ECC Controller
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Additional logic for NAND Flash
and CompactFlash
TM
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Optional Full 32-bit External Data Bus
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Up to 26-bit Address Bus (up to 64MBytes linear per chip select)
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Up to 6 chip selects, Configurable Assignment:
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Static Memory Controller on NCS0
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DDR2/SDRAM Controller (SDCS) or Static Memory Controller on NCS1
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Static Memory Controller on NCS2
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Static Memory Controller on NCS3, Optional NAND Flash support
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Static Memory Controller on NCS4 - NCS5, Optional CompactFlash
M
support
7.3.2.1 Static Memory Controller
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8-, 16- or 32-bit Data Bus
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Multiple Access Modes supported
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Byte Write or Byte Select Lines
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Asynchronous read in Page Mode supported (4- up to 32-byte page size)
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Multiple device adaptability
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Control signals programmable setup, pulse and hold time for each Memory Bank
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Multiple Wait State Management
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Programmable Wait State Generation
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External Wait Request
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Programmable Data Float Time
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Slow Clock mode supported
7.3.2.2 DDR2/SDR Controller
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Supports DDR2/LPDDR2, SDR-SDRAM and LPSDR
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Numerous Configurations Supported
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2K, 4K, 8K, 16K Row Address Memory Parts
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SDRAM with Four Internal Banks
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SDR-SDRAM with 16- or 32- bit Data Path
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DDR2/LPDDR with 16- bit Data Path
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One Chip Select for SDRAM Device (256 Mbyte Address Space)
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Programming Facilities
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Multibank Ping-pong Access (Up to 4 Banks Opened at Same Time = Reduces Average Latency of
Transactions)
Transactions)
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Timing Parameters Specified by Software
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Automatic Refresh Operation, Refresh Rate is Programmable
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Automatic Update of DS, TCR and PASR Parameters (LPSDR)
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Energy-saving Capabilities
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Self-refresh, Power-down and Deep Power Modes Supported
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SDRAM Power-up Initialization by Software
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CAS Latency of 2, 3 Supported
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Auto Precharge Command Not Used
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SDR-SDRAM with 16-bit Datapath and Eight Columns Not Supported
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Clock Frequency Change in Precharge Power-down Mode Not Supported