Study with the several resources on Docsity
Earn points by helping other students or get them with a premium plan
Prepare for your exams
Study with the several resources on Docsity
Earn points to download
Earn points by helping other students or get them with a premium plan
Community
Ask the community for help and clear up your study doubts
Discover the best universities in your country according to Docsity users
Free resources
Download our free guides on studying techniques, anxiety management strategies, and thesis advice from Docsity tutors
Test Paper - Microprocessors and Microcontrollers - Mumbai University - Electronics Engineering - 5th Semester, Study notes of Electronics
<div><br /></div><div>27128 chip, data memory, 6264 chip, CPU clock 12 MHz, program memory, square wave, synchronization between 8086 and 8087, DW, PROC, EQU, PUBLIC, DD, RS-232C bus standard, serial port 8051</div><div><br /></div><div><br /></div>
Typology: Study notes
1 / 1
Related documents
Partial preview of the text
Download Test Paper - Microprocessors and Microcontrollers - Mumbai University - Electronics Engineering - 5th Semester and more Study notes Electronics in PDF only on Docsity!
.....
( 3 Hours) L^ I utal^ IVlc;I'^ n^ .--
N.B. : (if (2) (3) (4) (5) (6)
Question No.1 is compulsory. Attempt any four questions from the remaining six questions. Assume suitable data if necessary for justification. Figures to the right indicate full marks. Answers to questions should be grouped and written together. Use legible handwriting.
1. (a)
(b)
Explain the power saving modes of 8051 microcontroller.
Design the following components for 8086 microprocessor with following
specifications:
(i) 64 kb operating software memory using 27128 chip
(ii) 64 kb RAM as data memory using 6264 chip
(iii) 2, 8 bit I/o ports..
10
10
2. Design 8751 based system with following specifications:
(a) CPU clock 12 MHz
(b) 32 kb program memory using 2764 chip
.(c) 32 kb data memory using 62256 chip
(d) 2, 8 bit I/o ports using 8255
(e) One 8 bit DAC for analog o/p
(f) One 8 bit ADC to read analog i/p.
20
- (^) (a) Write a assembly language program to generate a square wave of 1 KHz at 10 P1.0 (bit 0 at port 1). (b) Explain the following instructions:
(i) MOVX, A, @ dptr
(ii) CJNE A, # OFFH, NEXT (iii) ANL 32 H, # 32H (iv) MUL AB (v) JBC P1.0, NEXT
10
4. Explain 8086-8087 interfacing with neat diagram. Explain the synchronization 20
between 8086 & 8087.
5. (a) Convert -187.625 in short real format.
(b) Explain the following directive with example -
. (i) OW
(ii) PROC (iii) EQU (iv) PUBLIC (v) DO.