STUPIDSID
1 (a)
Explain the Interrupt structure of 8085 microprocessor
5 M
1 (b)
Explain the control word format of PPI 8255
5 M
1 (c)
Explain the interrupt structure of 8051 microcontroller
5 M
1 (d)
Explain addressing modes of ARM processor
5 M
2
Design 8085 based system with following specifications
(i) CPU operating at 3 MHz
(ii) 8KB EPROM using 2KB devices
(iii) 16KB SRAM using 4KB devices
(iv) Two 8 bit ports performing simple I/O data transfer
Draw detail interface diagram and its Memory mapping & I/O mapping using absolute decoding approach.
(i) CPU operating at 3 MHz
(ii) 8KB EPROM using 2KB devices
(iii) 16KB SRAM using 4KB devices
(iv) Two 8 bit ports performing simple I/O data transfer
Draw detail interface diagram and its Memory mapping & I/O mapping using absolute decoding approach.
20 M
3 (a)
Draw the timing diagram for (i) STA 8000H (ii) IN 85H
10 M
3 (b)
Explain with the instructions used for serial communication in 8085 microprocessor
10 M
4 (a)
Explain with SFR used for timers and counters operation in 8051 microcontroller
10 M
4 (b)
Explain addressing modes with one example of 8051 microcontroller
10 M
5 (a)
Write the control word format for the I/O mode and BSR mode of the 8255
10 M
5 (b)
List the various operating modes of 8254? Explain with waveforms mode 2&3 operations
10 M
6 (a)
Write an assembly language program to sort a given list a of 10 numbers starting at memory location 8000H in ascending order for 8085 microprocessor
10 M
6 (b)
Write an assembly language program to find biggest number in a block of data stored in the memory location 80H-8FH for 8051 microcontroller
10 M
Write a short note on
7 (a)
Mapping techniques -I/O mapped I/O and memory mapped -I/O
5 M
7 (b)
Power saving modes of 8051 microcontroller
5 M
7 (c)
Addressing modes of ARM processor
5 M
7 (d)
Salient features of 8051
5 M
More question papers from Microcontroller and Applications