CIRCC 데이터 시트보기 (PDF) - SMSC -> Microchip

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CIRCC

Consumer Infrared Communications Controller

SMSC -> Microchip 

DATA

0

1

0

1

0

0

1

1

0

1

1

IRTX

t2

t1

t2

t1

nIRTX

FIGURE 9 - IrDA SIR TRANSMIT TIMING

PARAMETER

t1 Pulse Width at 115kbaud

t1 Pulse Width at 57.6kbaud

t1 Pulse Width at 38.4kbaud

t1 Pulse Width at 19.2kbaud

t1 Pulse Width at 9.6kbaud

t1 Pulse Width at 4.8kbaud

t1 Pulse Width at 2.4kbaud

t2 Bit Time at 115kbaud

t2 Bit Time at 57.6kbaud

t2 Bit Time at 38.4kbaud

t2 Bit Time at 19.2kbaud

t2 Bit Time at 9.6kbaud

t2 Bit Time at 4.8kbaud

t2 Bit Time at 2.4kbaud

MIN TYP MAX UNITS

1.41 1.6 2.71

µs

1.41 3.22 3.69

µs

1.41 4.8 5.53

µs

1.41 9.7 11.07

µs

1.41 19.5 22.13

µs

1.41 39 44.27

µs

1.41 78 88.55

µs

8.68

µs

17.4

µs

26

µs

52

µs

104

µs

208

µs

416

µs

Notes:

1. Receive Pulse Detection Criteria: A received pulse is considered detected if the received pulse is a

minimum of 1.41 µs

2. IRTX: Tx Polarity bit = 1 (default)

nIRTX: Tx Polarity bit = 0

19

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