ATSAM3S-EK Atmel, ATSAM3S-EK Datasheet - Page 705
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ATSAM3S-EK
Manufacturer Part Number
ATSAM3S-EK
Description
KIT EVAL FOR ATSAM3S4C
Manufacturer
Atmel
Series
SAM3Sr
Type
MCUr
Specifications of ATSAM3S-EK
Contents
Board, Cables, Power Supply
Silicon Manufacturer
Atmel
Core Architecture
ARM
Core Sub-architecture
Cortex-M3
Kit Contents
Board
Features
TFT Colour LCD Display, SD/MMC Interface
Svhc
No SVHC (15-Dec-2010)
Rohs Compliant
Yes
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:
ATSAM3S-EK
Manufacturer:
Atmel
Quantity:
135
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33.7.5.1
33.7.5.2
6500C–ATARM–8-Feb-11
6500C–ATARM–8-Feb-11
IrDA Modulation
IrDA Baud Rate
For baud rates up to and including 115.2 Kbits/sec, the RZI modulation scheme is used. “0” is
represented by a light pulse of 3/16th of a bit time. Some examples of signal pulse duration are
shown in
Table 33-12. IrDA Pulse Duration
Figure 33-34
Figure 33-34. IrDA Modulation
Table 33-13
the requirement on the maximum acceptable error of ±1.87% must be met.
Table 33-13. IrDA Baud Rate Error
Baud Rate
2.4 Kb/s
9.6 Kb/s
19.2 Kb/s
38.4 Kb/s
57.6 Kb/s
115.2 Kb/s
Peripheral Clock
3 686 400
20 000 000
32 768 000
40 000 000
3 686 400
20 000 000
32 768 000
• Configure the TXD pin as PIO and set it as an output to 0 (to avoid LED emission). Disable
• Receive data
the internal pull-up (better for power consumption).
Table
gives some examples of CD values, baud rate error and pulse duration. Note that
shows an example of character transmission.
Transmitter
33-12.
Output
TXD
Baud Rate
115 200
115 200
115 200
115 200
57 600
57 600
57 600
Bit Period
Start
Bit
0
1
0
Pulse Duration (3/16)
78.13 µs
19.53 µs
9.77 µs
4.88 µs
3.26 µs
1.63 µs
CD
11
18
22
22
36
1
2
4
Data Bits
0
0
Baud Rate Error
SAM3S Preliminary
SAM3S Preliminary
1
0.00%
1.38%
1.25%
1.38%
0.00%
1.38%
1.25%
1
16
3
0
Bit Period
Stop
Bit
1
Pulse Time
1.63
1.63
1.63
1.63
3.26
3.26
3.26
705
705
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