Temperature Sensor Code Contd | Intel MCS-80/85 specification

Temperature Sensor Code (Cont'd)

ISIS-II 888eI8885 IflCRO			ASSEIfIt.ER, V2. e		IQ)llE	PI&:
LOC	r.eJ	SEQ		5(UC£ STATE/DT
2888 lElll		1118 THIGH'		ItVI	A,93H
28IIA 0329		199		em	28H
298C JEFF		119		ItVI	A. 9FFH	iSET ~T B AS 1'S
2eI:IE	()322	111		em	22H
2la CF		112		I1ST	1
		113 ;
		114 i
2992		115 ~		21192H
		116 i
		117 ;
2992 BE		118 SEARCH		CIt?
21193	DB	119		RC
2894 23		129		INX		i ELSE IraEI£NT POINTER
21195	BE	121		ClIP		i CMARE 2M) BYTE
21196	DB	122		RC
21197	23	123		INX
2898 BE		124		ClIP		i CMARE 3RI) BYTE
21199 DB		125		RC
2II9fI	23	126		INX
2II9B BE		127		ClIP		i CMARE 4TH BYTE
289C DB		128		RC
2II9D	23	129		INX
299E BE		139		ClIP		; CMIft 5TH BYTE
2II9F	DB	131		RC
28A9 23		132		INX
28A1	BE	133		ClIP		• ((WARE 6TH BYTE
2IIR2	DB	134		RC
211Rl	23	135		INX
2IIR4	BE	136		CIt?		;C~ 7TH BYTE
2IIR5	DS	137		RC
29A6 23		138		INX
211R7	BE	139		(.'If'		i C(WARE 8TH BYTE
29A8 DS		1411		Rt
2fIA9	23	141		INX
29ffi	lID	142		Dl"R	C	i HAS ENTIRE BlOCK BEEN
28A9 C29228		143		JNZ	SEARCH	• SEARCI£D?	IF so SET NO
2ft C9		144		RET		i LESS TIfII	AND RETlRN.
		145.
		146	.' RESTART 6. 5 J\.If'IlJOI1ESS
		147.
20CE		148 ~		211CEH
		149.
		159 i
29CE	G1S29	151		,11f'	CNTU
		152·
		153	,
		154.
		155.
		156 .
		157 ,
		158. SEAllCH C(w~E DHTA STRINJ (SEE m:n
		159.
		1611	i
2e..QlJ		161	ORG	2f.I88H

162 .

A1-46

MCS-80/85 specifications

The Intel MCS-80/85 family, introduced in the late 1970s, is a seminal collection of microprocessors that played a pivotal role in the early days of computing. The MCS-80 series, initially targeting embedded systems and control applications, gained remarkable attention due to its innovative architecture and flexible programming capabilities.

The MCS-80 family is anchored by the 8080 microprocessor, which was one of the first fully integrated 8-bit microprocessors. Released in 1974, the 8080 operated at clock speeds ranging from 2 MHz to 3 MHz and featured a 16-bit address bus capable of addressing up to 64KB of memory. The processor’s instruction set included around 78 instructions, providing extensive capabilities for data manipulation, logic operations, and branching.

Complementing the 8080 was a suite of support chips, forming the MCS-80 platform. The most notable among them was the 8155, which integrated a static RAM, I/O ports, and a timer, tailored for ease of designing systems around the 8080. Other support chips included the 8085, which provided improvements with an integrated clock generator, making it compatible with more modern designs and applications.

The MCS-85 series, on the other hand, revolves around the 8085 microprocessor, which provided a more advanced architecture. The 8085 operated at clock speeds of up to 6 MHz and came with a 16-bit address bus, similar to its predecessor. However, it introduced more sophisticated features, including an enhanced instruction set and support for interrupt-driven programming. These enhancements made the 8085 especially appealing to developers working in real-time processing environments.

The MCS-80/85 family utilized NMOS technology, known for its lower power consumption and higher performance compared to previous technologies like TTL. The family’s architecture allowed for easy interfacing with a variety of peripherals, making it a favorite for educational institutions and hobbyists embarking on computer engineering projects.

With its robustness, versatility, and affordability, the Intel MCS-80/85 microprocessors laid the groundwork for many subsequent microcomputer systems and applications. The legacy of this powerful family continues to influence modern microprocessor design, emphasizing the importance of reliable architecture in a rapidly evolving technology landscape.

Intel MCS-80/85 manual Temperature Sensor Code Contd

Models: MCS-80/85

Temperature Sensor Code (Cont'd)

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MCS-80/85 specifications