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~ National ~ Semiconductor - Al Kossow's Bitsavers

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(W) r---------------------------------------------------------------------------------,<br />

~<br />

~<br />

N Timing Waveforms<br />

(W)<br />

en<br />

.......<br />

z<br />

--"<br />

OUTPUT<br />

l.SV<br />

(W)<br />

~<br />

ENABLE -'I \' I<br />

(W)<br />

--l 1- TZE ----- '---I---TEz--<br />

f c<br />

-=\I->-~(::,:,VO;;;H~-:::"O.::S):,:"V--<br />

002-0011<br />

OUTPUTS<br />

(OUTPUT CONTROL = HI)<br />

(Z+ O.S)V .:::r--Y<br />

(Z O.S)V ~'I\<br />

REGISTER ---------------.....,'X<br />

'-_______________....I-T- (VOL +O.S)V<br />

~ I-Tal<br />

1-IPW1~1<br />

~M ~<br />

t<br />

1-'---TD-2--------<br />

V,..------------<br />

FIGURE 8. Data Sequence Timing<br />

TL/F/5237-10<br />

DATA<br />

AVAILABLE<br />

\<br />

I-T03-1<br />

RECEIVER<br />

ACTIVE<br />

ERROR<br />

t<br />

REGISTER<br />

READ \<br />

'\<br />

-T04-1<br />

I-Tos-I<br />

Ts-I<br />

)(<br />

{<br />

1-TPw2-I-TH-1<br />

OUTPUT<br />

CONTROL<br />

'\ !,<br />

I.o- T06-1<br />

I.o-TD7-1<br />

BIT1-BIT7 DATA BITS<br />

X<br />

ERROR BITS<br />

X<br />

FIGURE 9. Error Sequence Timing<br />

DATA<br />

BITS<br />

TLlF/5237-11<br />

111111 I VIJ~~~oN 11 I DATA 10 IMCvlMcvl<br />

~---(2~~--SlJ<br />

--I 1-- T08<br />

RECEIVER ____________ --I.----r~1 ------'<br />

ACTIVE ! - _<br />

AVAILABLE DATA ________________----?I~<br />

I.Tol~1<br />

1 ____<br />

I-T09-1<br />

r----------<br />

...<br />

FIGURE 10. Message Timing<br />

TLlF/5237-12<br />

2-40

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