FDC37C932APM View Datasheet(PDF) - SMSC -> Microchip

Part Name

Description

Manufacturer

FDC37C932APM

Plug and Play Compatible Ultra I/O™ Controller with Soft Power Management

SMSC -> Microchip 

DATA

0

1

0

1

0

0

11

0 11

t2

t1

t2 t1

IRRX

nIRRX

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

1.4

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

Note1: Receive Pulse Detection Criteria: A received pulse is considered detected if the

received pulse is a minimum of 1.41µs.

Note 2: IRRX: L5, CRF1 Bit 0: 1 = RCV active low

nIRRX: L5, CRF1 Bit 0: 0 = RCV active high (default)

Note 3: This polarity assumes that the GPIO has not been programmed for inverted.

FIGURE 38 - IrDA RECEIVE TIMING

275

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