AT32UC3A464 Atmel Corporation, AT32UC3A464 Datasheet - Page 438

• Manufacturer Part Number: AT32UC3A464
• Manufacturer: Atmel Corporation

Specifications of AT32UC3A464

• Flash (kbytes): 64 Kbytes
• Pin Count: 100
• Max. Operating Frequency: 66 MHz
• Cpu: 32-bit AVR
• Hardware Qtouch Acquisition: No
• Usb Transceiver: 1
• Usb Speed: Hi-Speed
• Usb Interface: Device + OTG
• Spi: 6
• Twi (i2c): 2
• Uart: 4
• Ssc: 1
• Sd / Emmc: 2
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• Adc Resolution (bits): 10
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 128
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: Yes
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 3.0 to 3.6
• Operating Voltage (vcc): 3.0 to 3.6
• Fpu: No
• Timers: 6
• Output Compare Channels: 6
• Input Capture Channels: 6
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

21.8.13
Register Name:
Access Type:
Offset:
Reset Value:
•
•
32072G–11/2011
SPIWPKEY: SPI Write Protection Key Password
SPIWPEN: SPI Write Protection Enable
31
23
15
7
-
If a value is written in SPIWPEN, the value is taken into account only if SPIWPKEY is written with “SPI” (SPI written in ASCII
Code, i.e. 0x535049 in hexadecimal).
1: The Write Protection is Enabled
0: The Write Protection is Disabled
Write Protection Control Register
30
22
14
6
-
WPCR
Read-write
0xE4
0x00000000
29
21
13
5
-
28
20
12
SPIWPKEY[23:16]
4
SPIWPKEY[15:8]
-
SPIWPKEY[7:0]
27
19
11
3
-
26
18
10
2
-
25
17
9
1
-
SPIWPEN
24
16
8
0
438