ATEVK1105 Atmel, ATEVK1105 Datasheet - Page 313
ATEVK1105
Manufacturer Part Number
ATEVK1105
Description
KIT EVAL FOR AT32UC3A0
Manufacturer
Atmel
Series
AVR®32r
Type
MCUr
Datasheets
1.ATAVRONE-PROBECBL.pdf
(16 pages)
2.ATEVK1104.pdf
(826 pages)
3.ATEVK1105.pdf
(28 pages)
Specifications of ATEVK1105
Contents
Evaluation Board, Software and Documentation
Processor To Be Evaluated
AT32UC3A0512
Processor Series
AVR
Data Bus Width
32 bit
Interface Type
USART, TWI, USB, SPI, Ethernet
Operating Supply Voltage
3.3 V
Silicon Manufacturer
Atmel
Core Architecture
AVR
Core Sub-architecture
AVR UC3
Silicon Core Number
AT32UC3A0512
Silicon Family Name
AVR
Kit Contents
Board CD Docs
Rohs Compliant
Yes
For Use With/related Products
AT32UC3A0
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
- Current page: 313 of 826
- Download datasheet (20Mb)
Figure 26-10. Start Frame Delimiter
26.7.3.3
Figure 26-11. Bit Resynchronization
26.7.3.4
32058J–AVR32–04/11
Asynchronous Receiver
Drift Compensation
Oversampling
16x Clock
Sampling
point
RXD
Drift compensation is available only in 16X oversampling mode. An hardware recovery system
allows a larger clock drift. To enable the hardware system, the bit in the MAN register must be
set. If the RXD edge is one 16X clock cycle from the expected edge, this is considered as nor-
mal jitter and no corrective actions is taken. If the RXD event is between 4 and 2 clock cycles
before the expected edge, then the current period is shortened by one clock cycle. If the RXD
event is between 2 and 3 clock cycles after the expected edge, then the current period is length-
ened by one clock cycle. These intervals are considered to be drift and so corrective actions are
automatically taken.
If the USART is programmed in asynchronous operating mode (SYNC = 0), the receiver over-
samples the RXD input line. The oversampling is either 16 or 8 times the Baud Rate clock,
depending on the OVER bit in the Mode Register (MR).
Manchester
Manchester
Manchester
encoded
encoded
encoded
data
data
data
Preamble Length
Synchro.
Txd
Txd
Txd
Error
is set to 0
Synchro.
SFD
SFD
SFD
Jump
DATA
One bit start frame delimiter
Expected edge
Tolerance
start frame delimiter
start frame delimiter
DATA
DATA
Command Sync
Jump
Sync
Data Sync
Synchro.
Error
AT32UC3A
313
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