AT32UC3A464 Atmel Corporation, AT32UC3A464 Datasheet - Page 612

• 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

25.7.18
Register Name:
Access Type:
Offset:
Reset Value:
• WPKEY: Write Protect KEY
• WPEN: Write Protect Enable
Protects the registers:
32072G–11/2011
•
•
•
•
•
•
•
”Mode Register” on page 590
”Baud Rate Generator Register” on page 601
”Receiver Time-out Register” on page 602
”Transmitter Timeguard Register” on page 603
”FI DI Ratio Register” on page 604
”IrDA Filter Register” on page 606
”Manchester Configuration Register” on page 607
31
23
15
—
7
Has to be written to 0x555341 (“USA” in ASCII) in order to successfully write WPEN. Always reads as zero.
0 = Write protection disabled.
1 = Write protection enabled.
Write Protect Mode Register
30
22
14
—
WPMR
Read-write
0xE4
See
6
Table 25-16
29
21
13
—
5
28
20
12
—
4
WPKEY[23:16]
WPKEY[15:8]
WPKEY[7:0]
27
19
11
—
3
26
18
10
—
2
25
17
—
9
1
WPEN
24
16
8
0
612