OMAP3530ECBBA datasheet(232/264 Pages) TI1

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1-WIRE

tLOWR

tRDV_ and_ tREL

tSLOT_ and_ tREC

030-100

1-WIRE

tLOW1

tLOW0

tSLOT_and_tREC

030-101

6.6.7

UART IrDA Interface

030-118

Pulseduration

90%

50%

10%

90%

50%

10%

6.6.7.1 IrDA—Receive Mode

OMAP3530/25 Applications Processor

SPRS507F – FEBRUARY 2008 – REVISED OCTOBER 2009

www.ti.com

Figure 6-60. 1-Wire Read Bit Timing (Data)

Figure 6-61. 1-Wire Write Bit Timing (Command/Address or Data)

The IrDA module can operate in three different modes:

• Slow infrared (SIR) (≤115.2 Kbits/s)

• Medium infrared (MIR) (0.576 Mbits/s and 1.152 Mbits/s)

• Fast infrared (FIR) (4 Mbits/s)

For more information about this interface, see the UART/IrDA chapter in the OMAP35x Technical

Reference Manual (TRM) [literature number SPRUF98].

Figure 6-62. UART IrDA Pulse Parameters

Table 6-114. UART IrDA—Signaling Rate and Pulse Duration—Receive Mode

ELECTRICAL PULSE DURATION

SIGNALING RATE

UNIT

MIN

NOMINAL

MAX

SIR

2.4 Kbit/s

1.41

78.1

88.55

µs

9.6 Kbit/s

1.41

19.5

22.13

µs

19.2 Kbit/s

1.41

9.75

11.07

µs

TIMING REQUIREMENTS AND SWITCHING CHARACTERISTICS

232

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