LPC47M14X datasheet(194/205 Pages) SMSC

Part #	LPC47M14X

Description	128 PIN ENGANCED SUPER I/O CONTROLLER WITH AN LPC INTERFACE AND USB HUB

PDF	205 Pages

Scroll/Zoom	100%

Manufacturer	SMSC [SMSC Corporation]

Direct Link	http://www.smsc.com

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194 / 205 page

SMSC DS – LPC47M14X

Page 194

Rev. 03/19/2001

FIGURE 36 – IRDA TRANSMIT TIMING

Parameter

min

1.41

max

2.71

3.69

5.53

11.07

22.13

44.27

88.55

units

µs

Pulse Width at 115kbaud

Pulse Width at 57.6kbaud

Pulse Width at 38.4kbaud

Pulse Width at 19.2kbaud

Pulse Width at 9.6kbaud

Pulse Width at 4.8kbaud

Pulse Width at 2.4kbaud

Bit T ime at 115kbaud

Bit Time at 57.6kbaud

Bit Time at 38.4kbaud

Bit Time at 19.2kbaud

Bit Time at 9.6kbaud

Bit Time at 4.8kbaud

Bit Time at 2.4kbaud

typ

1.6

3.22

4.8

9.7

19.5

8.68

17.4

104

208

416

DAT A

IRT X

n IRT X

Notes:

1. IrDA @ 115k i s HPSIR compati ble. IrDA @ 2400 wi ll al low compatibility with HP95LX

and 48SX.

2. IRT X:

L5, CRF 1 Bit 1 = 1 (default)

nIRT X: L5, CRF1 Bit 1 = 0

LPC47M14X Datasheet(PDF) 194 Page - SMSC Corporation

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