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SPRS717F –OCTOBER 2011–REVISED APRIL 2013
5.13.2 UART IrDA Interface
The IrDA module operates in three different modes:
•
•
•
Slow infrared (SIR) (≤ 115.2 Kbps)
Medium infrared (MIR) (0.576 Mbps and 1.152 Mbps)
Fast infrared (FIR) (4 Mbps).
Figure 5-97 illustrates the UART IrDA pulse parameters. Table 5-93 and Table 5-94 list the signaling rates
and pulse durations for UART IrDA receive and transmit modes.
Pulse Duration
Pulse Duration
50%
50%
50%
Figure 5-97. UART IrDA Pulse Parameters
Table 5-93. UART IrDA—Signaling Rate and Pulse Duration—Receive Mode
ELECTRICAL PULSE DURATION
SIGNALING RATE
UNIT
MIN
MAX
SIR
2.4 Kbps
1.41
1.41
1.41
1.41
1.41
1.41
88.55
22.13
11.07
5.96
µs
µs
µs
µs
µs
µs
9.6 Kbps
19.2 Kbps
38.4 Kbps
57.6 Kbps
115.2 Kbps
MIR
4.34
2.23
0.576 Mbps
1.152 Mbps
FIR
297.2
149.6
518.8
258.4
ns
ns
4 Mbps (Single pulse)
4 Mbps (Double pulse)
67
164
289
ns
ns
190
Copyright © 2011–2013, Texas Instruments Incorporated
Peripheral Information and Timings
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