AT91SAM9G45-EKES Atmel, AT91SAM9G45-EKES Datasheet - Page 156

• Manufacturer Part Number: AT91SAM9G45-EKES
• Description: KIT EVAL FOR AT91SAM9G45
• Manufacturer: Atmel
• Series: AT91SAM Smart ARMr
• Type: MCUr

Specifications of AT91SAM9G45-EKES

• Contents: Board
• Processor To Be Evaluated: SAM9G45
• Data Bus Width: 32 bit
• Interface Type: I2C, SPI, UART
• Maximum Operating Temperature: + 50 C
• Minimum Operating Temperature: - 10 C
• Operating Supply Voltage: 1.8 V to 3.3 V
• For Use With/related Products: AT91SAM9G45
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: Q4626953

20.1.2
20.1.2.1
156
AT91SAM9G45
Embedded Characteristics
DDR2/LPDDR Controller
Four AHB Interfaces, Management of All Accesses Maximizes Memory Bandwidth and Mini-
mizes Transaction Latency.
• Supports AHB Transfers:
• Supports DDR-SDRAM 2, LPDDR
• Numerous Configurations Supported
• Programming Facilities
• Energy-saving Capabilities
• Power-up Initialization by Software
• CAS Latency of 2, 3 Supported
• Reset function supported (DDR2)
• Auto Precharge Command Not Used
• On Die Termination not supported
• OCD mode not supported
– Word, Half Word, Byte Access.
– 2K, 4K, 8K, 16K Row Address Memory Parts
– DDR2 with Four Internal Banks
– DDR2/LPDDR with 16-bit Data Path
– One Chip Select for DDR2/LPDDR Device (256 Mbytes Address Space)
– Multibank Ping-pong Access (Up to 4 Banks Opened at Same Time = Reduces
– Timing Parameters Specified by Software
– Automatic Refresh Operation, Refresh Rate is Programmable
– Automatic Update of DS, TCR and PASR Parameters
– Self-refresh, Power-down and Deep Power Modes Supported
Average Latency of Transactions)
6438F–ATARM–21-Jun-10