SAM9G10 Atmel Corporation, SAM9G10 Datasheet - Page 470

• Manufacturer Part Number: SAM9G10
• Manufacturer: Atmel Corporation

Specifications of SAM9G10

• Flash (kbytes): 0 Kbytes
• Pin Count: 217
• Max. Operating Frequency: 266 MHz
• Cpu: ARM926
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 96
• Ext Interrupts: 96
• Usb Transceiver: 3
• Usb Speed: Full Speed
• Usb Interface: Host, Device
• Spi: 2
• Twi (i2c): 1
• Uart: 4
• Ssc: 3
• Sd / Emmc: 1
• Graphic Lcd: Yes
• Video Decoder: No
• Camera Interface: No
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 16
• Self Program Memory: NO
• External Bus Interface: 1
• Dram Memory: sdram
• Nand Interface: Yes
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 1.8/3.3
• Operating Voltage (vcc): 1.08 to 1.32
• Fpu: No
• Mpu / Mmu: No/Yes
• Timers: 3
• Output Compare Channels: 3
• Input Capture Channels: 3
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: No

30.7.11
Name:
Address:
Access:
Reset:
• WPEN: Write Protect Enable
0 = Disables the Write Protect if WPKEY corresponds to 0x444452 (“DDR” in ASCII).
1 = Enables the Write Protect if WPKEY corresponds to 0x444452 (“DDR” in ASCII).
Protects the registers:
• WPKEY: Write Protect KEY
Should be written at value 0x444452 (“DDR” in ASCII). Writing any other value in this field aborts the write operation of the
WPEN bit. Always reads as 0.
470
470
•
•
•
•
•
•
•
•
“DDRSDRC Mode Register” on page 456
“DDRSDRC Refresh Timer Register” on page 457
“DDRSDRC Configuration Register” on page 458
“DDRSDRC Timing Parameter 0 Register” on page 461
“DDRSDRC Timing Parameter 1 Register” on page 463
“DDRSDRC Timing Parameter 2 Register” on page 464
“DDRSDRC Memory Device Register” on page 467
“DDRSDRC High Speed Register” on page 469
31
23
15
—
7
SAM9G35
SAM9G35
DDRSDRC Write Protect Mode Register
DDRSDRC_WPMR
0xFFFFE8E4
Read-write
See
Table 30-16
30
22
14
—
6
29
21
13
—
5
28
20
12
—
4
WPKEY
WPKEY
WPKEY
27
19
11
—
3
26
18
10
—
2
25
17
—
9
1
11053B–ATARM–22-Sep-11
11053B–ATARM–22-Sep-11
WPEN
24
16
8
0