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Product data sheet Rev. 5 — 12 August 2011 31 of 45

NXP Semiconductors

LPC2141/42/44/46/48

Single-chip 16-bit/32-bit microcontrollers

9.1 Timing

Fig 6. External clock timing (with an amplitude of at least V

i(RMS)

= 200 mV)

CHCL

CLCX

CHCX

cy(clk)

CLCH

002aaa907

Fig 7. Differential data-to-EOP transition skew and EOP width

002aab561

PERIOD

differential

data lines

crossover point

source EOP width: t

FEOPT

receiver EOP width: t

EOPR1

, t

EOPR2

crossover point

extended

differential data to

SE0/EOP skew

n × T

PERIOD

+ t

FDEOP

1 2 ... 26 27 28 29 30 31 32 33 34 35 36 ... 44 45

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ARM IM-AD1 Manual de usuario Pagina 31