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~ National ~ Semiconductor - Al Kossow's Bitsavers

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Timing Waveforms<br />

~~m~ ---j1.5V j 1.6V<br />

Dg~T~U ____--{ (Z~Z:5IV<br />

r-----------------J:" (VO;HT~ 0.51V<br />

(OUTPUT CONTROL = Hil (Z - O.5~ I-TD1 +-(VOH + D.iIV<br />

DATA<br />

AVAILABLE<br />

y--------.\I<br />

rlPW11<br />

--------~I I~<br />

REGISTER ----------------..\i<br />

READ<br />

L.....!t<br />

I-TD2<br />

'1,.-------~---<br />

FIGURE 7. Data Sequence Timing<br />

TL/F/5238-9<br />

DATA<br />

\<br />

AVAILABLE<br />

RECEIVER<br />

ACTIVE<br />

't<br />

I-TD3--!<br />

-TD4-!<br />

ERROR<br />

;(<br />

REGISTER<br />

READ<br />

\ I<br />

TS --I<br />

t<br />

I4-TD5-.1<br />

I-TPW2--I-TH-1<br />

OUTPUT<br />

CONTROL '\ /,<br />

~TD6-o-1<br />

LTD7 -o-1<br />

D02-DOa DATA BITS<br />

X<br />

ERROR BITS<br />

X DATA BITS TLlF/5238-10<br />

FIGURE 8. Error Sequence Timing<br />

I 1 I 1 I 1 I Vl(f&~~ON I 1 I DATA I 0 I MCV I MCV I<br />

~---(1C~--J1J<br />

-I 1- TDB I- TD101<br />

•<br />

RECEIVER ____________--'~;O'I------.....,L.____<br />

ACTIVE<br />

•<br />

I-TDB-I<br />

DATA 1"----------<br />

AVAILABLE -------------~I,;o.__I<br />

FIGURE 9. Message Timing<br />

TL/F/5238-11<br />

2-19

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