SAM9X25 Atmel Corporation, SAM9X25 Datasheet - Page 463

• Manufacturer Part Number: SAM9X25
• Manufacturer: Atmel Corporation

Specifications of SAM9X25

• Flash (kbytes): 0 Kbytes
• Pin Count: 217
• Max. Operating Frequency: 400 MHz
• Cpu: ARM926
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 105
• Ext Interrupts: 105
• Usb Transceiver: 3
• Usb Speed: Hi-Speed
• Usb Interface: Host, Device
• Spi: 2
• Twi (i2c): 3
• Uart: 7
• Can: 2
• Lin: 4
• Ssc: 1
• Ethernet: 2
• Sd / Emmc: 2
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 12
• Adc Resolution (bits): 10
• Adc Speed (ksps): 440
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 32
• Self Program Memory: NO
• External Bus Interface: 1
• Dram Memory: DDR/LPDDR, SDRAM/LPSDR
• Nand Interface: Yes
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 1.8/3.3
• Operating Voltage (vcc): 0.9 to 1.1
• Fpu: No
• Mpu / Mmu: No/Yes
• Timers: 6
• Output Compare Channels: 6
• Input Capture Channels: 6
• Pwm Channels: 4
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: No

30.7.8
Name:
Address:
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 = Reserved
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.
11054A–ATARM–27-Jul-11
11054A–ATARM–27-Jul-11
31
23
15
–
–
–
7
–
DDRSDRC Memory Device Register
30
22
14
DDRSDRC_MD
0xFFFFE820
Read-write
See
–
–
–
6
–
Table 30-16
29
21
13
–
–
–
5
–
DBW
28
20
12
–
–
–
4
“DDRSDRC Write Protect Mode Register” on page
27
19
11
–
–
–
3
–
26
18
10
–
–
–
2
MD
25
17
–
–
9
–
1
SAM9X25
SAM9X25
466.
24
16
–
–
8
–
0
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