AT91SAM9G45-EKES Atmel, AT91SAM9G45-EKES Datasheet - Page 271

• 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

22.7.8
Name:
Access:
Reset:
This register can only be written if the bit WPEN is cleared in
• MD: Memory Device
Indicates the type of memory used.
Reset value is for SDR-SDRAM device.
000 = SDR-SDRAM
001 = Low-power SDR-SDRAM
010 =
011 = Low-power DDR1-SDRAM
110 = DDR2-SDRAM
• DBW: Data Bus Width
Reset value is 16 bits.
0 = Data bus width is 32 bits (reserved for SDR-SDRAM device).
1 = Data bus width is 16 bits.
6438F–ATARM–21-Jun-10
Reserved
31
23
15
–
–
–
7
–
DDRSDRC Memory Device Register
30
22
14
DDRSDRC_MD
Read-write
See
–
–
–
6
–
Table 22-9
29
21
13
–
–
–
5
–
DBW
28
20
12
–
–
–
4
“DDRSDRC Write Protect Mode Register” on page
27
19
11
–
–
–
3
–
26
18
10
–
–
–
2
AT91SAM9G45
MD
25
17
–
–
9
–
1
275.
24
16
–
–
8
–
0
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