AT91SAM9G45-CU-999 Atmel, AT91SAM9G45-CU-999 Datasheet - Page 271

• Manufacturer Part Number: AT91SAM9G45-CU-999
• Description: IC MCU ARM9 APMC 324TFBGA
• Manufacturer: Atmel
• Series: AT91SAMr

Specifications of AT91SAM9G45-CU-999

• Core Processor: ARM9
• Core Size: 16/32-Bit
• Speed: 400MHz
• Connectivity: EBI/EMI, Ethernet, I²C, IrDA, MMC, SPI, SSC, UART/USART, USB
• Peripherals: AC'97, DMA, I²S, LCD, POR, PWM, WDT
• Number Of I /o: 160
• Program Memory Size: 64KB (64K x 8)
• Program Memory Type: ROM
• Ram Size: 128K x 8
• Voltage - Supply (vcc/vdd): 0.9 V ~ 1.1 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 324-TFBGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Supplier Unconfirmed

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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