ATEVK1105 Atmel, ATEVK1105 Datasheet - Page 330

• Manufacturer Part Number: ATEVK1105
• Description: KIT EVAL FOR AT32UC3A0
• Manufacturer: Atmel
• Series: AVR®32r
• Type: MCUr

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

Figure 26-34. IrDA Modulation
26.7.6.2
32058J–AVR32–04/11
IrDA Baud Rate
Table 26-9.
Figure 26-34 on page 330
Table 26-10 on page 330
tion. Note that the requirement on the maximum acceptable error of ±1.87% must be met.
Table 26-10. IrDA Baud Rate Error
Transmitter
Baud Rate
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
40 000 000
3 686 400
20 000 000
32 768 000
40 000 000
3 686 400
20 000 000
32 768 000
40 000 000
Output
TXD
Bit Period
IrDA Pulse Duration
Start
Bit
0
1
Baud Rate
115 200
115 200
115 200
115 200
57 600
57 600
57 600
57 600
38 400
38 400
38 400
38 400
19 200
19 200
19 200
19 200
gives some examples of CD values, baud rate error and pulse dura-
shows an example of character transmission.
0
1
Data Bits
0
0
Pulse Duration (3/16)
4.88 µs
3.26 µs
1.63 µs
107
130
CD
22
36
43
33
53
65
12
65
11
18
22
2
4
6
1
1
16
3 Bit Period
Baud Rate Error
0
Stop
0.00%
1.38%
1.25%
1.38%
0.00%
1.38%
1.25%
0.93%
0.00%
1.38%
0.63%
0.16%
0.00%
0.16%
0.31%
0.16%
Bit
1
AT32UC3A
Pulse Time
4.88
4.88
9.77
9.77
9.77
1.63
1.63
1.63
1.63
3.26
3.26
3.26
3.26
4.88
4.88
9.77
330