Data Sheet

Pulse Duration
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Pulse Duration
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www.ti.com 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.
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 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
Copyright © 2011–2013, Texas Instruments Incorporated Peripheral Information and Timings 223
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