SAMA5D41_14 Datasheet, PDF (1337/1776 Pages) ATMEL Corporation – Atmel | SMART ARM-based Embedded MPU

Figure 44-32. IrDA Modulation
Transmitter
Output
TXD
Start
Bit
0 10
Data Bits
1 ⁰⁰¹¹
Stop
Bit
01
Bit Period
3/16 Bit Period
44.6.5.2 IrDA Baud Rate
Table 44-12 gives some examples of CD values, baud rate error and pulse duration. Note that the requirement on
the maximum acceptable error of ±1.87% must be met.
Table 44-12. IrDA Baud Rate Error
Peripheral Clock
Baud Rate (Bit/s)
CD
Baud Rate Error
3,686,400
115,200
2
0.00%
20,000,000
115,200
11
1.38%
32,768,000
115,200
18
1.25%
40,000,000
115,200
22
1.38%
3,686,400
57,600
4
0.00%
20,000,000
57,600
22
1.38%
32,768,000
57,600
36
1.25%
40,000,000
57,600
43
0.93%
3,686,400
38,400
6
0.00%
20,000,000
38,400
33
1.38%
32,768,000
38,400
53
0.63%
40,000,000
38,400
65
0.16%
3,686,400
19,200
12
0.00%
20,000,000
19,200
65
0.16%
32,768,000
19,200
107
0.31%
40,000,000
19,200
130
0.16%
3,686,400
9,600
24
0.00%
20,000,000
9,600
130
0.16%
32,768,000
9,600
213
0.16%
40,000,000
9,600
260
0.16%
3,686,400
2,400
96
0.00%
20,000,000
2,400
521
0.03%
32,768,000
2,400
853
0.04%
Pulse Time (µs)
1.63
1.63
1.63
1.63
3.26
3.26
3.26
3.26
4.88
4.88
4.88
4.88
9.77
9.77
9.77
9.77
19.53
19.53
19.53
19.53
78.13
78.13
78.13
SAMA5D4 Series [DATASHEET]
Atmel-11238A-ATARM-SAMA5D4-Datasheet_30-Sep-14
1337