AT91SAM9G45-EKES Atmel, AT91SAM9G45-EKES Datasheet - Page 230

• 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

22.2
Figure 22-1.
230
AHB Slave Interface 0
AHB Slave Interface 1
AHB Slave Interface 2
AHB Slave Interface 3
DDRSDRC Module Diagram
AT91SAM9G45
DDRSDRC Module Diagram
APB
DDRSDRC is partitioned in two blocks (see
• An Interconnect-Matrix that manages concurrent accesses on the AHB bus between four
• A controller that translates AHB requests (Read/Write) in the SDRAM protocol.
AHB masters and integrates an arbiter.
Stage
Stage
Stage
Stage
Input
Input
Input
Input
Interconnect Matrix
Interface APB
Output
Arbiter
Stage
SDRAM Signal Management
Asynchronous Timing
Refresh Management
DDR-SDR Controller
Finite State Machine
Power Management
Memory Controller
Figure
22-1):
Addr, DQM
ras,cas,we
cke
clk/nclk
Data
DQS
odt
6438F–ATARM–21-Jun-10
DDR-SDR
Devices