Atmel Evaluation Kit AT91SAM9M10-G45-EK AT91SAM9M10-G45-EK Data Sheet

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SAM9M10 [DATASHEET]

6355F–ATARM–12-Mar-13

• AMBA Compliant Interface, interfaces Directly to the ARM Advanced High performance Bus (AHB)

– Four AHB Interfaces, Management of All Accesses Maximizes Memory Bandwidth and Minimizes 

Transaction Latency

– AHB Transfer: Word, Half Word, Byte Access

• Supports DDR2-SDRAM, Low-power DDR1-SDRAM or DDR2-SDRAM, SDR-SDRAM and Low-power SDR-

SDRAM

• Numerous Configurations Supported

– 2K, 4K, 8K, 16K Row Address Memory Parts 

– SDRAM with Four   Internal Banks

– SDR-SDRAM with 16- or 32-bit Data Path

– DDR-SDRAM with 16-bit Data Path

– One Chip Select for SDRAM Device (256 Mbyte Address Space)

• Programming Facilities

– Multibank Ping-pong Access (Up to or 4 Banks Opened at Same Time = Reduces Average Latency of 

Transactions)

– Timing Parameters Specified by Software

– Automatic Refresh Operation, Refresh Rate is Programmable

– Automatic Update of DS, TCR and PASR Parameters (Low-power SDRAM Devices)

• Energy-saving Capabilities

– Self-refresh, Power-down, Active Power-down and Deep Power-down Modes Supported

• SDRAM Power-up Initialization by Software

• CAS Latency of 2, 3 Supported

• Reset Function Supported (DDR2-SDRAM)

• ODT (On-die Termination) Not Supported

• Auto Precharge Command Not Used

• SDR-SDRAM with 16-bit Datapath and Eight Columns Not Supported

• DDR2-SDRAM with Eight Internal Banks Not Supported

• SDR-SDRAM or Low-power DDR1-SDRAM with 2 Internal Banks Not Supported

• Clock Frequency Change in Precharge Power-down Mode Not Supported

• OCD (Off-chip Driver) Mode Not Supported