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~ National ~ Semiconductor - Al Kossow's Bitsavers

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DP8344A<br />

~<br />

8l<br />

RASII state<br />

leU state<br />

CLK-OUT<br />

REM-RD<br />

RSA<br />

T,<br />

RS A<br />

TX<br />

RS A<br />

TWd<br />

RS A<br />

T2<br />

RSa<br />

LCL I I '<br />

XACK<br />

READ<br />

T,<br />

RSe<br />

TWr<br />

RS D<br />

TWr<br />

I<br />

ALE ~ I ,\o..-------------i-<br />

I<br />

I J-- DATA MEMORY ACCESS =::1 I<br />

ADDR~~~~ §3("'--L-OCA-L-D-AT-A-~XIIIOlllmIIIOII17X REMOTE DATA X'"L-OCA";"L-A-DDR-ES-S""'X LOCAL DATA><br />

: I<br />

A(~~~i OOOlX'----L-OCA-L-A-DD-RES-S----XlllllX------RE-II-O-TE-AD-DR-ESS-----""""'\x LOCAL ADDRESS xommm<br />

RS D<br />

TWd<br />

BCP BUS<br />

REMOTE BUS<br />

ADDRESS ~ REMOTE ADDRESS Xllmooo<br />

DATA<br />

I<br />

I<br />

I<br />

QIIIIIIIIIIIIIIIII/2222/22/22/2112/XC==:!REM~O~TE~DA~TA==:::» -------_+_<br />

RS E<br />

TWr<br />

RS,<br />

TWr<br />

RS G<br />

TX<br />

RSG<br />

TWd<br />

RS A<br />

T2<br />

RS ...<br />

T,<br />

RS ...<br />

T2<br />

01)<br />

b<br />

::D<br />

CD<br />

3<br />

o<br />

-CD<br />

~<br />

;.<br />

-CD<br />

2<br />

I»<br />

~<br />

Do<br />

... »<br />

17<br />

;::;<br />

Dl<br />

-o·<br />

~<br />

~<br />

;-<br />

3<br />

i<br />

!<br />

1...-__ LOCAL MEMORY READ I I REMOTE READ I I BCP INT. OP. --------'<br />

Register Configuration:<br />

-One Wait-State Programmed for Data-Memory<br />

-Zero Wait-States Programmed for Instruction-Memory<br />

-{RICI Contents: XXX1X100<br />

-[LOR] = 0<br />

Other BCP Control Signals:<br />

RAE =0<br />

CMD =0<br />

REM-WR =1<br />

LOCK =1<br />

FIGURE 28. Latched Read of Data Memory by Remote Processor<br />

TL/F/9336-30

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