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Intel 8080 manual ~ r ------ + -- t --- . L . ------ rJ, Title Card, Blank, 79-80

Models: 8080

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MCS™ CUSTOM ROM ORPER _FOR.M_ 8308

a. Title Card

 

 

 

 

 

 

NO. OF OUTPUTS

 

TITLE CARD

 

 

 

 

 

 

 

 

4 or 8

 

DESIGNATION

 

 

CUSTOMER'S

 

INTEL P/Nl

DECIMAL NUMBER

'1

CUSTOMER'S

DIVISION OR

 

 

 

LOCATION

CUSTOMER:S PIN

1INDICATING THE

 

COMPANY NAME

 

I'

 

 

 

 

i

~

~

TRUTH TABLE NUMBER

~"/~ G.:"-'·i-i·iNl('·~ CORP

::.,.o#1'i::

,-:~AI?~

\.!iLI~

 

h?14:'

(h',

 

I

II

II I

I I

I I

I

II II

 

 

I

 

I

III

III

I

I

I

I

 

 

I

 

~~~~~!~,~~~~~~~~~~I~!~~~~~~~~~~~~~~~~~!~~~~~!~~~~~~~~~~~~~~~~~~~I~~~~'~~!~~~I~~~~,~,,!

1I1111111 i 11111111111111 1 1111111111111111111111111111111111111111111111111111111

2222211221121122212122222'21222122 il21112 22 222 2 22 2222222222212221222222 2121l2121?

I) II J3) ) ) 31 )11) ) lll) )I) ) ) )) )) ) ) ) 3l ) ) ) I) )Illl ) )1) I J3 )) )) ) ) )) ) I) )] ] )) II) ] ) ) ) ) ) ) 1))

4U44uuU4u44u44U44u4u4UUUU4U4444UU444UU4UUIU444u41U444~~44

~! ~ SS5SSSI ~I S~ 5SIS SS5SSSSS5S~ SSSS55 5ISS 5 5SS~ SSSS5SSSSSSSSSs'SSSIS 5SS5S5SIS IS) SSSS 666666 &6 6 6 &66661666666166666666666666666666666 &6661666666666 6 ~ &&6 666666666666666 I I " II I T I I I I I ,," I 111 I 1III I 1111 I I I I I I 11 I 111 I 1 I I 11 T 111111111 I 1 I 11111' I'11111111 j 1I

88 8 8 8 818 8 8 88 88 8 8 88 8 8 88 8 8 88888888888 8888 8 8 8 8 8 8888888888888 8 ~ ea6 8 GH& U 8 8 81118 8 adB P

99 H H 919 g.~ 9 9 ql9 9199 9 9 919 9 99999999999999999199 J 9 919 9 9 gq 9 9999 ~'J' r, q 913 9 9 q 9 n 9 q ~ q q q

' ...... II I •• ), . 'I 'l ' . J • ,.,.:.:: .LO' :\: . :' ••••, 1Q)1 J: 'J'. J\" J~ J:I)1 ,,, •• ,: . , . : l . ••• ' ", •• . ' \: .1", ,•• ' ,f •• • '. . .. ~. fl'!' .. •• •

•

.'.l ~"'l

ColumnData

1Punch·aT

2-5 Blank

6~30 Customer Company Name

31-34 Blank

35-54Customer'sCompany Division or location

55-57 Blank

58-66Customer Part Number

67Blank

68-75

Punch the Intel 4-digit basic part number

 

and in ( ) the number of output bits,

 

e.g., ·8308(8).

76-78

Blank'

.

79-80

Punch a 2-digit decimal number to iden-

 

tify the truth table number (mask

 

programmed ch ip select number).

b.fQr_a 1024 wQrd X 8-bit organiza- tion only, cards 2 and the following cards should be punched as shown.

 

MSB

 

 

DECIMAL WORD

(OUTPUT 8l

LSB

DECIMAL NUMBER

ADDRESS BEGINNING

 

(OUTPUT 1)

INDICATING THE

EACH CARD

 

8 DATA F.IELDS

TRUTH TABLE NUMBER

~r ------ + -- t --- . L . ------ _ rJ,

11111111 1I11II1I 1111I1I1 11111111 11111111 11111111 11111111 11111111

1111100000000000000000000000000 U00 00000000000000000000000000000000000000000 u0011

•11'I I" ",'" '·\'I·:III'~:·:.:.:•. I:\:::tI~10111lIJ.. nlll:III"'U'/fI""''':lIh':III:II~III6I'I.lt"'II;lhHIIU·I'I'·;,·.·j·.·I·",n.··

1I1111I1I1I1111111111111111I111111111111I111111111111111111I1111111111111111111I

222221111111 2121222212212 , 11 2111 22 22 222222 2 222 22? Z212222211 2'12 22~ 222 222; 222i ? ~ ; 2

3] J J ] )) J ) ) 1 ) ) ) ) J JJ ) ) ) ) ] ] ] JJ J j ) ) ] J) J ))) ) ] ) ] ) J J J lJ J lJ ) ] 13 J J )) )) J ) ] J J JJ J] 1 3 J 1 ) 1 ) J J J

U4 C.: u . U U:4 4 .. H 4. 4 c:: ~. t t . : . · 14 C.:: 4 44 ~ 4 H 4 4 4: 4 H 4 4: 4 U H: 4 H: ~ 4 ~: ~:::: 4 ~:: ~ ~ S~ ~ S~ I S11111 ~ SsSSIII ~ s)S1111. ) ;. i j II i ) Iss sill; i ; ) 1111I i iSS II) sIII ~ i ) II ~ ; II) ) ) )

H H H H H 66 6 6b 6 66 6 &6 Et ( i H b E~ bt 0 6 Ii 6& 6 0 t 666 t ~ b0 ~ ~ 0 ~ 6 60 6 ~ 0 ii£ i: DO 0 0 ~ ~ c~ ~ :: ~ 0 t bEt 0 ~ 0 ~

1111111: 11: : : : : 1111;': ; I; II: ~ 1 : II; 111111111111//11111111 i 11111111: i 11/1; ...... ; I: I

868S8868Pfltg86G8888a888aci8888886~888888688666886&e8~~~Eae~li:~:i~o:~i,'~~:ii~i=:

9 h

~"O;" •q Q q H

~ ~ ~ " 9 qg 9 q 0; ~ ~

It" go C q q H 99 9 q 9 9 n 9 Q 5 ~ .; ; '... • , • ; • , ,

I

: . , .

• ;. •

.'.. , . ••• I ~ : I ~ : f c,.. .

ColumnData'

1-5Punch the 5-digit decimal equivalent of the binary coded location which be- gins each card. The address is right justified, Le., 00000, 00008, 00016, etc.

6Blank

7-14Data Field

15Blank

16-23Data Field

;33 Blank

34-41Data Field

42 Blank

43-50Data Field

51Blank

52-59 Data Field

60Blank

61-68Data Field

69Blank

70-77Data Field

78Blank

79-80Punch same 2-digit decimal number as in title card.

2. Paper Tape Format

1" wide paper tape using 7- or 8-bit ASCII code, such as a model 33 ASR teletype produces, or the 11/16" wide paper tape using a 5-bit Baudot code, such as a Telex produces.

The format requi rements are as fol- lows:

a.All word fields are to be punched in consecutive order, starting with word field 0 (all addresses low). There mu~t be exactly 1024 word fields for the 1024 X 8 ROM organization.

b. Each word field must begin with the start character B and end with the stop character F. There must be ex- actly 8 data characters between the B and F.

NO OTHER CHARACTERS, SUCH AS RUBOUTS, ARE ALLOWED ANY- WHERE IN A WORD FIELD. If in pre- paring a tape an error i~ made, the en- tire word field, including the Band F, must be rubbed out. Within the word field, a P results in a high level output and an N results in a low level output.

c. Preceding the first word field and following the last word field, there must be a leader/trailer length of at

least 25 characters. This should consist of rubout or null punches (letter key for Telex tapes).

d.Between word fields, comments not containing B's or F's may be inserted. Carriage return and line feed characters should be inserted as a "comment")

just before each word field (or at least between every four word fields). When these carriage returns, etc., are inserted, the tape may be easily listed on the teletype for purposes of error check- ing. The customer may also find it helpful to insert the word number (as a comment) at least every four word fields.

e. Incl uded in the tape before the leader should be the customer's com- plete Telex or TWX number and, if more than one pattern is being trans- mitted, the ROM pattern number.

f.MSB and LSB are the most and least significant bit of the device outputs. Refer to the data sheet for the pi n numbers.

Start Character

~

Stop Character I , I

Data Field

,

I

Leader: Rubout Key for TWX and Letter

B P P P N N N N N F B N N N N N N P P F

Key for Telex (at least 25 frames).

I

'I

I

 

 

Word'Field0

WordiField 1

MSB

LSB

,

+

BNPNPPPNNF Trailer: Ruboul Key for TWX and Leuer Key for Telex (al leasl 25 frames),

Ii'

Word Field 1023

5-60

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Intel 8080 manual ~ r ------ + -- t --- . L . ------ rJ, Title Card, Blank, 79-80
Page 123 Page 125

8080 specifications

The Intel 8085 and 8080 microprocessors were groundbreaking innovations in the world of computing, paving the way for future microprocessor development and personal computing.

The Intel 8080, introduced in 1974, was an 8-bit microprocessor that played a fundamental role in the early days of personal computing. With a 16-bit address bus, it had the capability to address 64 KB of memory. Running at clock speeds of 2 MHz, the 8080 was notable for its instruction set, which included 78 instructions and 246 opcodes. It supported a range of addressing modes including direct, indirect, and register addressing. The 8080 was compatible with a variety of peripherals and played a crucial role in the development of many early computers.

The microprocessor's architecture was based on a simple and efficient design, making it accessible for hobbyists and engineers alike. It included an 8-bit accumulator, which allowed for data manipulation and storage during processing. Additionally, the 8080 featured registers like the program counter and stack pointer, which facilitated program flow control and data management. Its ability to handle interrupts also made it suitable for multitasking applications.

The Intel 8085, introduced in 1976, was an enhancement of the 8080 microprocessor. It maintained a similar architecture but included several key improvements. Notably, the 8085 had a built-in clock oscillator, simplifying system design by eliminating the need for external clock circuitry. It also featured a 5-bit control signal for status line management, which allowed for more flexible interfacing with peripheral devices. The 8085 was capable of running at speeds of up to 3 MHz and had an extended instruction set with 74 instructions.

One of the standout features of the 8085 was its support for 5 extra instructions for stack manipulation and I/O operations, which optimized the programming process. Additionally, it supported serial communication, making it suitable for interfacing with external devices. Its 16-bit address bus retained the 64 KB memory addressing capability of its predecessor.

Both the 8080 and 8085 microprocessors laid the groundwork for more advanced microprocessors in the years that followed. They demonstrated the potential of integrated circuits in computing and influenced the design and architecture of subsequent Intel microprocessors. Their legacy endures in the way they revolutionized computing, making technology accessible to a broader audience, and their influence is still felt in the design and architecture of modern microprocessors today.