Pulse Duration
50%
50%
50%
Pulse Duration
234
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SPRS717J – OCTOBER 2011 – REVISED APRIL 2016
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Peripheral Information and Timings
Copyright © 2011–2016, Texas Instruments Incorporated
7.15.2 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).
illustrates the UART IrDA pulse parameters.
and
list the signaling
rates and pulse durations for UART IrDA receive and transmit modes.
Figure 7-115. UART IrDA Pulse Parameters
Table 7-115. UART IrDA—Signaling Rate and Pulse Duration—Receive Mode
SIGNALING RATE
ELECTRICAL PULSE DURATION
UNIT
MIN
MAX
SIR
2.4 kbps
1.41
88.55
µs
9.6 kbps
1.41
22.13
µs
19.2 kbps
1.41
11.07
µs
38.4 kbps
1.41
5.96
µs
57.6 kbps
1.41
4.34
µs
115.2 kbps
1.41
2.23
µs
MIR
0.576 Mbps
297.2
518.8
ns
1.152 Mbps
149.6
258.4
ns
FIR
4 Mbps (single pulse)
67
164
ns
4 Mbps (double pulse)
190
289
ns