FDC37B72X View Datasheet(PDF) - SMSC -> Microchip

Part Name

Description

Manufacturer

FDC37B72X

128 Pin Enhanced Super I/O Controller with ACPI Support

SMSC -> Microchip 

SERIAL PORT INFRARED TIMING

IRDA SIR RECEIVE

DATA 0

1

0

1

0

0

11

0 11

IRRX

t2

t1

t2 t1

n IRRX

Parameter

t1 Pulse Width at

t1 Pulse Width at

t1 Pulse Width at

t1 Pulse Width at

t1 Pulse Width at

t1 Pulse Width at

t1 Pulse Width at

t2 Bit Time at

t2 Bit Time at

t2 Bit Time at

t2 Bit Time at

t2 Bit Time at

t2 Bit Time at

t2 Bit Time at

min typ max units

1.4

1.6

2.71

µs

1.4 3.22 3.69

µs

1.4

4.8

5.53

µs

1.4

9.7 11.07 µs

1.4 19.5 22.13 µs

1.4

39 44.27 µs

1.4

78 88.55 µs

8.68

µs

17.4

µs

26

µs

52

µs

104

µs

208

µs

416

µs

1. Receive Pulse Detection Criteria: A received pulse is considered

received pulse is a minimum of 1 41µs

2. IRRX: L5, CRF1 Bit 0

nIRRX: L5, CRF1 Bit 0 = 0

FIGURE 31 - IRDA SIR RECEIVE TIMING

233

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