SAM9G15 Atmel Corporation, SAM9G15 Datasheet - Page 259

• Manufacturer Part Number: SAM9G15
• Manufacturer: Atmel Corporation

Specifications of SAM9G15

• 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: 6
• Lin: 4
• Ssc: 1
• Sd / Emmc: 2
• Graphic Lcd: Yes
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 12
• Adc Resolution (bits): 10
• Adc Speed (ksps): 440
• Resistive Touch Screen: Yes
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 32
• Self Program Memory: NO
• External Bus Interface: 1
• Dram Memory: DDR2/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

23.7.46
Name:
Address:
Access:
Reset:
For more information on Write Protection Registers, refer to
Interface”.
• WPEN: Write Protect Enable
0: Disables the Write Protect if WPKEY corresponds to 0x50494F (“PIO” in ASCII).
1: Enables the Write Protect if WPKEY corresponds to 0x50494F (“PIO” in ASCII).
Protects the registers:
“PIO Enable Register” on page 234
“PIO Disable Register” on page 234
“PIO Output Enable Register” on page 235
“PIO Output Disable Register” on page 236
“PIO Input Filter Enable Register” on page 237
“PIO Input Filter Disable Register” on page 237
“PIO Multi-driver Enable Register” on page 242
“PIO Multi-driver Disable Register” on page 243
“PIO Pull Up Disable Register” on page 244
“PIO Pull Up Enable Register” on page 244
“PIO Peripheral ABCD Select Register 1” on page 246
“PIO Peripheral ABCD Select Register 2” on page 247
“PIO Output Write Enable Register” on page 252
“PIO Output Write Disable Register” on page 252
“PIO Pad Pull Down Disable Register” on page 250
“PIO Pad Pull Down Status Register” on page 251
11052C–ATARM–21-Nov-11
31
23
15
7
–
PIO Write Protect Mode Register
PIO_WPMR
0xFFFFF4E4 (PIOA), 0xFFFFF6E4 (PIOB), 0xFFFFF8E4 (PIOC), 0xFFFFFAE4 (PIOD)
Read-write
See
Table 23-2
30
22
14
6
–
29
21
13
5
–
28
20
12
4
–
WPKEY
WPKEY
WPKEY
Section 23.7 ”Parallel Input/Output Controller (PIO) User
27
19
11
3
–
26
18
10
–
2
25
17
–
9
1
SAM9G15
WPEN
24
16
8
0
259