ATEVK1104 Atmel, ATEVK1104 Datasheet - Page 314
![KIT DEV/EVAL FOR AVR32 AT32UC3A](/photos/9/20/92035/atevk1104_sml.jpg)
ATEVK1104
Manufacturer Part Number
ATEVK1104
Description
KIT DEV/EVAL FOR AVR32 AT32UC3A
Manufacturer
Atmel
Series
AVR®32r
Type
MCUr
Datasheets
1.ATAVRONE-PROBECBL.pdf
(16 pages)
2.ATEVK1104.pdf
(826 pages)
3.ATEVK1104.pdf
(90 pages)
4.ATEVK1104.pdf
(6 pages)
5.ATEVK1104.pdf
(12 pages)
Specifications of ATEVK1104
Contents
Evaluation Board, Software and Documentation
Processor To Be Evaluated
AT32UC3A3
Data Bus Width
32 bit
Interface Type
USB, SPI, USART
Silicon Manufacturer
Atmel
Core Architecture
AVR
Core Sub-architecture
AVR UC3
Silicon Core Number
AT32UC3A3256
Silicon Family Name
AVR
Kit Contents
Board CD Docs
Rohs Compliant
Yes
For Use With/related Products
AT32UC3A3
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATEVK1104
Manufacturer:
Atmel
Quantity:
135
- ATAVRONE-PROBECBL PDF datasheet
- ATEVK1104 PDF datasheet #2
- ATEVK1104 PDF datasheet #3
- ATEVK1104 PDF datasheet #4
- ATEVK1104 PDF datasheet #5
- Current page: 314 of 826
- Download datasheet (20Mb)
Figure 26-12. Asynchronous Start Detection
Figure 26-13. Asynchronous Character Reception
32058J–AVR32–04/11
Clock (x16)
Baud Rate
Sampling
Sampling
Sampling
Baud Rate
Example: 8-bit, Parity Enabled
Detection
Clock
RXD
RXD
Start
Clock
RXD
The receiver samples the RXD line. If the line is sampled during one half of a bit time at 0, a start
bit is detected and data, parity and stop bits are successively sampled on the bit rate clock.
If the oversampling is 16, (OVER at 0), a start is detected at the eighth sample at 0. Then, data
bits, parity bit and stop bit are sampled on each 16 sampling clock cycle. If the oversampling is 8
(OVER at 1), a start bit is detected at the fourth sample at 0. Then, data bits, parity bit and stop
bit are sampled on each 8 sampling clock cycle.
The number of data bits, first bit sent and parity mode are selected by the same fields and bits
as the transmitter, i.e. respectively CHRL, MODE9, MSBF and PAR. For the synchronization
mechanism only, the number of stop bits has no effect on the receiver as it considers only one
stop bit, regardless of the field NBSTOP, so that resynchronization between the receiver and the
transmitter can occur. Moreover, as soon as the stop bit is sampled, the receiver starts looking
for a new start bit so that resynchronization can also be accomplished when the transmitter is
operating with one stop bit.
Figure 26-12 on page 314
reception when USART operates in asynchronous mode.
1
1
2
2
samples
3
3
16
4
4
D0
5
5
samples
16
6
6
D1
Detection
7
7
Rejection
samples
Start
Start
16
8
0
and
D2
1
1
samples
16
2
2
Figure 26-13 on page 314
3
3
D3
samples
4
4
16
5
D4
samples
6
16
7
D5
samples
8
16
9 10 11 12 13 14 15 16
D6
samples
16
illustrate start detection and character
D7
samples
16
Parity
Bit
samples
16
Stop
Bit
Sampling
AT32UC3A
D0
314
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