AT32UC3A3256AU Atmel Corporation, AT32UC3A3256AU Datasheet - Page 463

• Manufacturer Part Number: AT32UC3A3256AU
• Manufacturer: Atmel Corporation

Specifications of AT32UC3A3256AU

• Flash (kbytes): 256 Kbytes
• Pin Count: 144
• Max. Operating Frequency: 66 MHz
• Cpu: 32-bit AVR
• # Of Touch Channels: 32
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 110
• Ext Interrupts: 110
• Usb Transceiver: 1
• Usb Speed: Hi-Speed
• Usb Interface: Device + OTG
• Spi: 6
• Twi (i2c): 2
• Uart: 4
• Lin: 4
• Ssc: 1
• Sd / Emmc: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• Adc Resolution (bits): 10
• Adc Speed (ksps): 384
• Resistive Touch Screen: No
• Dac Channels: 2
• Dac Resolution (bits): 16
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 128
• Self Program Memory: YES
• External Bus Interface: 1
• Dram Memory: sdram
• 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
• Mpu / Mmu: Yes / No
• Timers: 6
• Output Compare Channels: 18
• Input Capture Channels: 12
• Pwm Channels: 12
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

22.9.6
Name:
Access Type:
Offset:
Reset Value:
• PEC: Calculated PEC Value
32072G–11/2011
31
23
15
7
-
-
-
The calculated PEC value. Updated automatically by hardware after each byte has been transferred. Reset by hardware after a
STOP condition. Provided if the user manually wishes to control when the PEC byte is transmitted, or wishes to access the PEC
value for other reasons. In ordinary operation, the PEC handling is done automatically by hardware.
Packet Error Check Register
30
22
14
6
-
-
-
PECR
Read-only
0x14
0x00000000
29
21
13
5
-
-
-
28
20
12
4
-
-
-
PEC
27
19
11
3
-
-
-
26
18
10
2
-
-
-
25
17
9
1
-
-
-
24
16
8
0
-
-
-
463