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~ National ~ Semiconductor - Al Kossow's Bitsavers

~ National ~ Semiconductor - Al Kossow's Bitsavers

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Message Format (Continued)<br />

DATA<br />

RECEIVER ACTIVE _________ -1<br />

AVAILABLE DATA _____________________--1<br />

REGISTER ---------------------------. r--<br />

READ<br />

U<br />

FIGURE 4a. Single Byte Message<br />

TL/F/5238-5<br />

DATA~~~~~<br />

LINE QUIESCE<br />

RECEIVER ACTIVE _________...<br />

I<br />

CODE I I II I ENDING I<br />

VIOLATION r--1st BYTE -r-----2nd BYTE -- ••• r--LAST BYTE -- SEQUENCE<br />

DATA _______-r-____.... nL ___...-Ir ...<br />

AVAILABLE _ _ _ u L<br />

REGISTER -----------------,U<br />

READ<br />

FIGURE 4b. Multi-Byte Message<br />

TLiF/5238-6<br />

DATA<br />

LINE QUIESCE<br />

I<br />

CODE<br />

VIOLATION I----CORRECT DATA BYTE---I<br />

I I<br />

RECEIVER ACTIVE _________.....<br />

DATA<br />

AVAILABLE ____________________ ---J<br />

ERROR _________________________ ~<br />

REGISTER -----------------------.....:-----,U<br />

READ<br />

OUT~T--------------------------~~<br />

CONTROL<br />

L.. __.....<br />

FIGURE 5. Message with Error<br />

TLiF/5238-7<br />

2-16

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