ASSEMBLY NO. 117330

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EXTERNAL PRIORITY INTERRUPT MODELS 8021, 8221, 8421

ASSEMBLY NO. 117330

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902301C

Price $4.50

ENGINEERING SUPPORT MANUAL

EXTERNAL PRIORITY INTERRUPT·

XEROX,

MODELS 8021,8221,8421 ASSEMBLY'NO.117330

~pecifications,

equipment descriptions, and procedures contained herein are subject to change without notice.

April 1972

This publication supersedes 902301B, dated Janua ry 1970

Prepared by

Field Engineering Publications

701 So. Aviation Blvd., EI Segundo, Calif. 90245, 213 679-4511 '.

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902301

PREFACE

The purpose of an Engineering Support Manual (ESM) is to provide, under one cover, all of the engineering-produced documentation which is relevant to the maintenance of Xerox Computer designed products.

ENGIt--lEERING SUPPORT INDEX (ESI)

The Engineering Support Index (ESI) begins on page i. The ESI is a table of contents indicating the drawings in this manual and provides. a cross-reference· between the change level of the Top Assembly drawing and the change levels~f related drawings.

UPDATING

When Engineering Orders (EO) to Top Assemblies are released, documentation is updated and distributed to appropriate installations by Xerox Computer Field Engineering through the method of Field Modification Kits (FMK 's). If Xerox is responsible for maintaining the affected equipment, the EO and the documentation Update Package is sent to the appropriate customer Service District

office. The Customer Engineer is then responsible for prompt EO installation and manual updating. r ' If the Xerox customer is responsible for equipment maintenance, a notification of the EO and the ( documentation Update Package is sent to the customer address that the customer has provided.

The Update Package typically includes a revised title page, revised Engineering Support Index page, and all·pages that have been revised.

CHANGES

Changes to an ESM drawing can be brought about only by the submission of a Drawing Change Request (DCR)a To effect

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drawing change; fiekLpersonnel.must submit

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Technjcol AcHon Request (TAR). A DCR may then be submitted by Maintenance Engineering after the TAR is reviewed. Customers who wish to notify Xerox of any discrepancies within the ESM may submit their comments on the Reader Survey sheet in the back of the manual and forward it to Xerox Computer Field Engineering Publications.

A

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902301

c ENGINEERING SUPPORT INDEX

MODEL 8021,8221, 8421 TOP ASSEMBLY 117330 LEVE L _--.,;..:R _ _ NAME EXTERNAL PRIORITY INTERRUPT

Section Dwg. No. Level Title Pages

DESIGN AUTOMATION DATA

124470-001 K Logi c Equations 1 thru 36

124470-100 K Logic Dictionary 1 thru 11

124472-001 _K Pin List 1 thru 28

124472-925 _K Pin Index 1 thru 23

II ENGINEERING TECHNICAL INFORMATION

129700 F. Modu Ie Location Chart 1 thru 2 III ADDITIONAL ENGINEERING DOCUMENTS

(-'\

117330 R Assembly Drawing 1 thru 2

~--/

124469 A Insta Ilation Drawing 1 of 1

124473 A Test Procedure 2 thru 7

G

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902301

RELATED PUBLICATIONS

The following Xerox publications contain information not included within this manual. These publications must beavai lable as part of Site Documentation in order for the user of this manual to learn, install, operate, and maintain the equipment.

Publication Title

Sigma 2 Computer, Technical Manual Sigma 3 Computer, Technical Manual Sigma 5 Computer, Technical Manual Sigma 7 Computer, Technical Manual Sigma 2 and 3 External Interrupt Test, Program No. 704002, Diagnostic Program Manual

Sigma 5 and 7 Interrupt Test, Program No. 704143, Diagnostic Program Manual

Document No.

900630 901593 901172 901060 901137

901134

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902301

SECTION I

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~ ^LOOIC ^EQUATIONS ^{. I} ^PINS ^I ^REMARKS

8

124470-001 K 03/22/71

·"CIL

• 10 I 2 3 .. !I II '7 • 1I.2CIa I! 3 .. IS IS '7 • II

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A

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32 1J34. _,

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A

1

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32 1J27. _, _,

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_, _, _, A

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A

1 .'

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•

^IERQO^~I ^A

15

.

~42. ~ -. 8

IERQO _~I -t-NS A

-. A

ERQO; =--E ~R

•

^IERQO^~I ^A

15 ~40. _,

Is . .

^, 8

IERQO _~I --NS A

, T~T A

ERQOe --E ^CR

•

^{IERQI) 91} ^A

15 J38. $

.

8

IERQO 91 --NS A

-, , A

ERQOS --E CR

..

^{IERao 91} ^A

15 J36.

. Is . .

^-. - ' " T -.-. 8

IERQl 01 -~NS ,A

A

. 1

ERQ10 --8 ~R

•

^{IERal 01} ^: ^A

.H: J34.

Is

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. . .

^-. A

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(16)

c ^~

)(£A()X DATA SYSTDtS

ecCE Llt£ Nl.

I 21 .. " • . , .

4212000 P 4212000 4212500 P 4212500 421300,0 P 4213000 4213500 P 4213500 4214000 P 4214000 4214500 p 4214500 4215000 p 4215000 4405000 P 440·5000

0 "',

^I, ^P ^4500000^4500000

4500100 P 4500100 4500500 p 4500500 4501000 P 4501000 4501100 p 4501100 4501500 p 4501500 4502000 P 4502000 4502100 p 4502100 4600000

p 4600000

I .1 .... .,.

Pll ^LOGIC ÊCUATI(H; Î ^PINS Î ^REHARKS

9

124470-001 K 03/22/71

elL

• 10 I 23" !I IS ., I II

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ERQI2

--8

~R

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^{IERQl 21} ^A

12 U42.

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8

IERQI 31 --NS A

-, ,

.'

^J ^" ^r A

ERQ13 --8 CR

•

^{IERQl 31} ^A

12 J40. $

e

IERQI 41 =-NS A

A

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ERQI4 --8 CR

•

^IERQl^'il ^A

12 J38. ^$ B

, J J T J

.

^,

...

^,

IERQl 51 =-NS A

,- . ",

.'.

A

ERQ15 =-8 CR

*

^IERQl

51

A

12 J36. ^$ B

"

· . ..

IF'NLO 01 --NS A

A

r -r "T T

· . .. _·

F'NLOO --8 ~R

•

^{IF'NLO 01} ^A

28 J34.

S

A

.

^,

_· _·

NF'NLO 0.-1 .F'NLOO A

30 J33X. 29X.3 3X-04 J13T -.- "T"T "T .-,

. . · ... .

^{, ,} A

IF'NLO 11 c-NS A

.

^{1 . 1} A

F'NLOI --8 CR

*

^{IF'NLO 11} ^A

28 J36. ^$ ^A.

· · ..

NF'NLOI "I .F'NLOI ^A

30 J24X 23X.C LtX-OLl J14T ,

. _· . ^..

A

IF'NLO 21 -I-NS ^A

· .. · .

A

F'NL02 --8 CR

*

^{IF'NLO 21} ^A

28 J38. $. ^A

.

^,

.

^,

^.. · ... _· ^..

NF'NLO 2. -I .F'NLO~ A

30 J06X 08X.O 6X-04 JI5T· ^A

r ' 0 ' 0

' . T

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^-.

· ·

IGATC L..KI 'il -NS ^A

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A

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^.

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(17)

~

_XEROX_OATA SYSTD1S CODE LIt£ NO.

I . 2 J .. " • . , .

4600200 P 4600200 4600300 P .4600300 4600350 P 4600350 460e^LfOO P 4600400 4600450 P 4600450 4600500 P 4600500 4600600 P 4600600 4600650 P 4600650 4601500 P 4601500 4601600 P 4601600 4,601650 P 4601650 4602500 P 4602500 4602600 P 4602600 4602650 P 4602650 4603000 p 4603000 4603600 P 4603600 4603650 P 4603650

I 13I1all' •

8421 SIGMA PRiO~~TY ^INTRPT.

~ LOGIC EQUATIONS I PINS I REHARKS

10 124470-001 K

03/22/71 C/L

• 10 I 23 .. " " . , . II 20. 23" " D.,. 1I:so. 23 .. " I . , I •

...a.

23" " • ., I II ~o. 2:J"" II., 1·11

eo.

23'" IS 11., . . . 70

.'

GATCL~ --8 ~R

•

^IGATC","KI A

28 U42. 1$

. .

A

GCLKI -8 . GATC ~K A

23 lJ26.2 I9X.24 ,26-ro4JO~SIT ,A

8 .GATe _~K

.

^, _A

23 ~25,c ~X,23 A

GCLK'c =8 .GATC ~K • ^, --. , "

A

23 lJ27.2 f.3X,2c .27- 04J011T A

8 .GATC ~K A

2'3 lJ'28.2 !9'x,21 ' ^, ^, ^, _A'

IGPA[J ROI --NS A

' , ^.,

A

GPADFO --E IcR ^~ IGPAE ROI A

2'E ",,'08, 1$' ""T""T

A NGPAE RO

-

l3'OJ4'c ^{I .GP}^~ORO~'. 44')'

. ..

^-^, ^A

A

IGPAD Rlf - I-NS -,

..

^,^, ^, ^, A

A

GPADRI --8 CR

*

^{IGPAD Rll} ^A

2'S _~J'1O. ^~'

·

^.- ^{T T} ^-r A

NGPAD Rl

-

~'OJ2'5 ^I ^{.GP AORI}X.26')( ^,.^, A ^A

IGPA[J R21 ^Mi-NS ^.^' ·A

·

^, A

GPAOR2 --8 CR

*

^IGPAC^R21 ^A

2'S _~J'13• $'

..

^,- ^,-,-;--.- _A

NGPA[J R2

^. -

30J22 ^I' ^{.GF AOR2}~'. 17')( ^AA

"

IGPA[J R31 - -NS _, A

, ^~, , , ,

.

_A

GPAOf;3 , --8 CR

*

^IGPAC^R31 ^A

2'8 lJ'1'8'. ' 1$" ^-.

.

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NGPAE R3 -. I • GF ~OR3 A

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(18)

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'XEROX DATA SYSTEHS

^~,

CODE lIt-£ NO.

I 2 J .. I I . ' 7 .

4605000 P 4605000 4605025 P 4605025 4605050 P 4605050 4605075 P 4605075 4790050 P 4790050 4790100 P 4790100 4790150 P 4790150 4800100 P 4800100 4800150 P 4800150 4800300 P 4800300 4800350 P 4800350 4900600 P 4800600 4800,650 P 4800650 4800800 P 4800800 4800850 P 4800850 4801000 P 4801000 4801050 P 4801050 4801400 p 4801400

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11 124470-001 K

03/22/71 P«l ell

S 10 I 2 1 .. !J II '7 B II 2~ 2 1 .. 5 II '7 II II 3~, If 1 .. 5 II '7 B II If,~ 2 1 .. 511 '7 8 II 50a 2.1 .. ' 5 II '7. II SI\ 2 J .. 5 II '7 8 .70

GRPSE _L.. _- I

•

^+.^~PADRO^{.NS WTHO} ^+.S~THO .NGPAO RO A 30 J37.$ .$.44 X.47. $.45 .42X. 37-0 4J20T A +. ^~'PAD'RI .NS W'THI ^+.S'~THI . N'GPA'O R'I . 'A

30 U$i,26 X.27. ~.46. 25X A

+ . GPADR 2 .NS WTH2 +.S~ TH2 .NGPAO R2 A

. ^.

₃₀_~'$.1'7 X, 19. $.0'3. 22'X A

+. GPADR3 .NS WTH3 +.S~ TH3 .NGPAO R3 A

30 J$,41 X.35, $.39. 38X _, _, ^A

GND03 J16 '"'-GNO ^H

03J16 _,

.

K

GND12 J16 :a-GND A

12Jl 6.16- 05-24 A

, , ,

GND12 J32 --GND A

12J3 2.32- 35-37 -39-4 1-45

. ^. ^.

^, B

GND19 J16 .. -GND A

19J1 6.16- 05-24 ^" S

· ·

^,

GND19 J32 --GND A

,19J3 2.32- 25-33 -35-:! i!-39-'+1~41!: B

. .

^,

GND21 ~16 Ia-GND A

2iJ16 A

. _· _· ^.

GND21 1J32 Ia-GND A

21J32 A

.. ^.

^,

_·

^,

_{· ..}

^,

GND2Li ~16 --GND ^A

24J16 ^K

o o T

·

^,

.. _. _'.

GND24 ~32 --GND ^A

24J3 2.32- 134 ^A

·

^,

GND26 J16 --OND ^A

26Jl 6. 16:- 05-24 ^A

"

-.

GND2E J32 --GND ^A

26J3 2.32- 35-3/ -39-4 1-45 A

,

.

^,

· .

^,^,.

GND28 J16 --GND ^A

28Jl 6.16- 01-02 -03-0 9-12- 15-24 -05 ^A

T

. · .

^,

.

^,

GND28 J32 --GND ^A

28J3 2.32- 25-33 -35-3 7-39- 45-41 ^A

GND32 J16 --GND ^A

32J16 16-0 5-24 ^B

. . .

^, ^, ^,

T , ,

~. -.

. . ^{. .}

'"

• 10 I • I If IS • ., • II 2~ • I .. IS. '7 • II 3~ I I " II II '7 • • If~ • I If IS • ., • • 5~ I I If IS • ., • II 80s I I If IS • ., • • 70

.- " .

(19)

~

XEROX DATA SYSTEMS CODE LH£ ~.

I

.1 .... .,.

~'80 1 ~50

P ~801~50

4900500 P ~900500

~900600

P 4900600 4900625 P ~900625

, ' ~900650

P ~900650 4900675 P ~900675

4900700 P ~900700

5000000 P. 5000000

~000010

P 5000010 5000020 P 5000020 5000030 P 5000030 5001000 P 5001000 5001010 P 5001010 5001020 P 5001020 5001030 P 5001030 5001040 P 5001040 5002000 P 5002000 5002010 P 5002010

1 I I . . . . .,.

8~21 SIGMA PRIORITY INTRPT.,

PiC ^LOGIC ^EQUATIONS ^I ^PINS

..

I REHARKS

12 .

124~70-001 I(

03/22/71 ' elL

• 10 I • I .. II • '7 II • !OJ • I." tI • '7 • • lOa • I ... '7 • • "Os '.1" II • '7 • •

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^I!I .. II • ., • •

,so. •

I .. II • ., • • 70

GN032 ~32 --GNC A

32~32 .32-2 5-33-135-3'7 -39-1.i _, _. 1-~5 B

HRQB2 --E CR

•

^IRQYI B

28.J2C:. $.2 _, 2-0~ .. elT B

NHRQE _~-B ~EREC A

2~ ~05.013 .(l 5-0~-.J ~OT A

I .£'WO't'

.

^A

De

^~6.Lt^1.40 A

I .HRQE

Iz •

B

o'e

~.J'~'5';3 19',42

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A

I .NOAl !A29. C

oe

U35.4 13.38 C

I ^, ^~'U'S'.

.

^, ^., G

2c ~12.0 ~. C~.07. G

INO -F'F ^, A

. 01 1J30X A

SlIN'(l

_.

_+.AE_~'NLE· • 'O'AT 1A'16 A

01 ~$, S ,37X.

oex

A

R/IN'O .

••

^+.RE^N' ^. +.AO'S O'B '.'0 f4'TAl'e 1," • .

A

0'7 _~S.

,s

,41X, 1s.35X , OS X A

C/IN'O

-

• GCl..l< 1 ^-.- A

,0'7 ~07X A

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0'7 ~31X A

N'I'N'1 ^-N'F~

.

^'T

A

0'7 ~46X A

51 I'N'1

••

^+'.A'E^~'NL'E:' ^.OAT'A^1'7 ^A

01 ~$,S, !37X, 2!5X A

R/INI

••

^+.R'E~

^1+'.

^AO'S

^o's

^.'1:^ATAt''7 ^T ^A'

.0'7 ~$,$. ~IX. 1s~35X, 2EIX A

CI I'N'1

.

• GCU< 1 ^, A

01 1J07X A

I'N'2 -Ff ^'

.

^':

.

_A

De

1J30X A

SI I'N'2

_. _1+'.

AE'E NLE • O'ATA 1 ^~' ^{, ,} ^-T ^'T A

De Js.s.

^j37X,0~)( A

.

^, --.-

, ,

. .

^,

I I I I

• 10,. I It • • ., • • 20a • I It • • ., • • lOa I I . . . . ., • • "Da I I . . . . ., • • !5Os I I .. II • ., • •

so.

^{I I}It • • ., • • 70

c

(20)

c

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XEROX DATA SYSTEHS

e~21 SIGMA PRIORITY INTR~T.

13

12~~70-001 K 03/22/71

CCOE LINE NO. ~ ^LOGIC ÊQUATIONS Î ^PINS Î ^REMARKS ^C/L

I 2 3 " 5 8 7 . II 10 I 23 .. !S IS '78 sa 2", 23 .. !S IS '7 8 II J~ it 3 .. !S IS 70 II"~ 2 3 .. !S II 7 8 1I!5~ 2 3" !S II 7 • II 6~ 23· .. !S IS '7 • 11 70

5002020 R/IN2 -* ^{+ :REN.} +.ADE DB .DATA1!a A

P 5002020 08 J$,$, ""IX, 1$,35)( .oex

.

-.

.

^T A

5002030 C/INc

-

. GCU< 1 A

P 5002030

...

oe 1J07X ^I ^~ A

5003000 IN3 -F'F A

P 5003000 OE !J31X A

I

. _·

5003010 NIN3 -NF'F A

P 5003010 OE !.J~QX

..

^.- ^~ ^I

.

A

500302P S/IN3 ... * I+.AEE NLE . pATAll9 A

P 5003020 OE !.J$,$ ~7X,2 I5x

.

^I

· .

A

5003030 R/IN3 =* ^+.REI'I +.ADB

pe

.pATAll9 A

P 5003030 OE IJ$,$. HIX. 1$,35)( 25X. A

I

5003035 CI IN~.

-

. GCLI< 1 A

P 5003035 . OE ~07X A

T I

·

^I

500~OOO IN~ -F'F A

P 500~000 O~ J30X

· .

^-

..

^~ A

500~010 S/IN~ ... * _{+.AEE NLE} .DATA

20

A

P 500~010 09 J$.$. ~7X.0 ex A

500~020 R/IN~ -* ^+.REN ^+.ADB

pe

.pATA20 A

P 500~020 O~ J$.$. ""IX. $.352< ^~oex A

I I , I ,-

.

_T . "

500~030 C/IN4

-

^.GCLKI ^A

P 500~030 OS J07X

. ..

^T ^{-T T} ^{T T ' T} A

5005000 IN5 -F'F A

p 5005000 _, OS J31X _, A

·

5005010 NIN5 -NF ^{F' .} A

P 5005010 O~ ~~6X A

I ,

·

^,

5005020 S/IN: -* +.AEE NLE .DATA ~l A

P 5005020 OS J$,$.

.

~_7X, c §.X ^, ^I

.

^{T •} A

5005030 R/IN: -* ^+.REt'I ^{+ •. ADB}

pe

.pATAcl A

P 5005030 OS ..J$.$. I4IX. $.35)( ^,~5X A

' T

5005040 CI IN:

-

. GCLI< 1 A

P 50050~0

.

OS U07X ^T ^T ^, A

5006000 IN6 -F'F A

P 5006000 10 U30 A

I •

.

^~ ^I ^,

'i"li'

..

^~T^•

~-,

·

^,

, , T-T

I 11'1111'1 • 10 I I I." I I . '7 • • 2", 1 1 'I IS • , 1 II 3", 21 .. II • ., • II .. '" I 1 'I II IS 7 1 II !5~ I J " II • '7 0 sa SDa .1'1 IS 1 ., • • 70

(21)

~

XEROX OATA SYSTEMS CODE UNE NO.

I 2 ] .. !I II ., II

5006010

p 5006010 5006020 P 5006020 5006030 P 5006030 5007000

p 5007000 5007010

p 5007010 5007020 P 5007020 5007030 P 5007030 5007040 P 5007040 5008000 P 5008000 5008010 P 5008010 5008020 P 5008020 5008030

p 5008030 5009000 P 5009000 5009010 P 5009010 5009020 P 5009020 5009030 p 5009030 5009040 P 5009040

I 23"15117'

~HCJ

II

8421 SIGMA PRIORITY INTRPT.'

14 124470-001 K

03/22/71 elL

10 I 2 3 .. !I II ., 8 9 20. 2 ] .. !I 6 ., 9 II 31\ ~ ] .. !I II ., 8 9 '10. 2 ] .. !I II 7 8 II 50. 2 ] .. !I II 7 8 9 so. ,2 :I .. !I II ., 8 9 7Il

S/IN6 =* +.AEE NLE .DATA ~2 A

10 ^~$,$,37X,0 8X A

R/IN6 =* +.REN +.ADB PB .pATA22 A

10 J$,$, 41X, ii.,35)< ,08X A

C/IN6 = .GCLKI A

10 J07X A

IN7 =FF A

10 kJ31X A

·

NIN7 ^=NF~ A

10 ~46X A

·

S/IN7 =* +.AEE NLE .DATA ~3 ^A

10 ^J$,$,37X,2 5X A

R/IN7 =* +.REN +.ADE DB .OATA23 A

10 J$,$, 41X. $,35)( .25X A

C/IN7

...

.GCLKI A

10 kJ07X A

· . · .

IN8 =FF A

14 kJ30X A

· .

S/INB =* +.AEE NLE .DATJI 24 A

14 U$.$, 37X,0

ax

^A

· · ·

R/IN8 =* +.REN +.ADB DB .OATA24 A

14 ^J$,$,41X. $,35X ,08X

· . _{. · ·}

^A

C/IN8

-

14 kJ07X ^.GCLK2 ^AA

·

IN9 -FF A

14 kJ31X

. ... _·

A

NIN9 =NFL- A

14 J46X

.. ·

A

SlINg =* +.AEE NLE .DATJI 25 ^A

14 kJ$,$, 37X,2 5X A

·

R/IN9 =* +.REN + .. ADE DB .OATA2f.5 A

14 kJ$,$, 41X. ~,35)( .25X ^A

·

C/IN9 = .GCLK~ A

14 J07X

.

A

· . . .

· · .

g 10 I 2 3 .. !I II 7 8 g 20. 2 3 It 15 II 7 8 g 3e; 2 3 .. 5 • ., .. g 'Ie; 2 :I It 15 • 7 .... 5e; 2 :I It !I II 7 .. g se; 2 :I It 5 a ., • • 70

ASSEMBLY NO. 117330

EXTERNAL PRIORITY INTERRUPT MODELS 8021, 8221, 8421