AT32UC3L-EK Atmel, AT32UC3L-EK Datasheet - Page 768
![no-image](/images/manufacturer_photos/0/0/78/atmel_sml.jpg)
AT32UC3L-EK
Manufacturer Part Number
AT32UC3L-EK
Description
KIT EVAL AVR32 UC3 MCU
Manufacturer
Atmel
Type
MCUr
Specifications of AT32UC3L-EK
Contents
*
Silicon Manufacturer
Atmel
Core Architecture
AVR
Core Sub-architecture
UC3L
Kit Contents
Board
Features
USB / Battery Powered, Board Controller / Bootloader
Svhc
No SVHC (15-Dec-2010)
Rohs Compliant
Yes
Tool Type
Starter Kit
Cpu Core
AVR 8
Data Bus Width
8 bit
Processor Series
AT32
Processor To Be Evaluated
AT32UC3L064
Interface Type
USB, Capacitive Touch
For Use With/related Products
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AT32UC3L-EK
Manufacturer:
Atmel
Quantity:
135
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- Download datasheet (13Mb)
Table 31-31. aWire Packet Format
32099F–11/2010
Field
LENGTH
DATA
CRC
Number of bytes
2
LENGTH
2
CRC calculation
The CRC is calculated from the command/response, length, and data fields. The polynomial
used is the FCS16 (or CRC-16-CCIT) in reverse mode (0x8408) and the starting value is
0x0000.
Example command
Below is an example command from the master with additional data.
Figure 31-9. Example Command
Example response
Below is an example response from the slave with additional data.
Figure 31-10. Example Response
baud_rate_clk
data_pin
field
...
baud_rate_clk
data_pin
field
...
Description
The number of bytes in the DATA
field.
Data according to command/
response.
CRC calculated with the FCS16
polynomial.
sync(0x55)
data(MSB)
sync(0x55)
data(MSB)
command(0x81)
data(LSB)
response(0xC1)
data(LSB)
Comment
CRC value of 0x0000 makes the aWire
disregard the CRC if the master does not
support it.
length(MSB)
CRC(MSB)
length(MSB)
CRC(MSB)
AT32UC3L016/32/64
length(lsb)
CRC(lsb)
length(lsb)
CRC(lsb)
Optional
Yes
Yes
No
...
...
768
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