G.NARAYANAMMA INSTITUTE OF TECHNOLOGY & SCIENCE

(FOR WOMEN)

SHAIKPET, HYDERABAD – 8

III / IV - B.TECH  II SEMESTER   V QUIZ – EXAMINATION

SUBJECT: MPMC                                                                              Regd.No:________

BRANCH: ECE –1 & 2                                                                       Max.Marks: 20

                                                                                                      Time: 20 Mins

1.      Describe the 8051 Instruction Format  indicating the fields clearly. …….2M

2.      Describe the Programmable Peripheral Interface (8255) control word  …2M

3.      Given  PA & PB are inputs , PCH & PCL are outputs and the mode of operation is  0  _________________ is the control word to be used.                    ….2M

4.      Given that the CS pin is given address 2800h, the A0 ,A1 pins are at 0 & 1 respectively then the _______________ port is addressed.                   …..1M

5.      The PPI (8255) port bits  are ______  directional                                ……   1M

6.      The PPI (8255) has    ______  ports                                                   ……   1M

7.      The PPI (8255)   has    ______  registers                                             ……   1M

8.      The data transfer between XRAM and CODE is  _______ possible………1M

9.      The method of accessing a table of addresses to decide the transfer of  control is called  __________________     ___________     __________________  …1M

10.  The JMP @A + DPTR is an    _________   _____________  instruction.. …1M

11.  The IC used by microprocessors & Microcontrollers  to find the actual time is called the      ________  ______________   ________________  chip      …..1M

12.  One of the important applications of microcontrollers in the police dept. is the _______________   ________________  ________________                   …..1M

13.  One more application in the Building construction  Industry is _____________  _____________                                                                                            …..1M

14.  The 8051 has  no _________________  serial communication                        …..1M

15.  The 8051 has   _____________  serial communication    modes                      …..1M

16.  The 8051 has register named  _______   for receiving and transmitting data…1M

17.   The receive & transmit interrupt bits  RI & TI are available  in  ________  …1M

 

 

BOLCRS