FMA Unit 1 Assignment

Fundamental of Microcontroller and its Application (SE Elect-2015)

Assignment No-01

Total Marks: 30 Marks

UNIT 1

1	Explain clearly the differences between Microcontroller and Microprocessor	5
2	Draw and explain internal structure of PORT 1 of 8051microcontroller	5
3	With neat diagram explain internal and external data and program memory of 8051 microcontroller.	5
4	Explain the function of pains ,   and ALE.	5
5	The internal RAM memory of the 8051 is: a.       32 bytes b.      64 bytes c.       128 bytes d.      256 bytes	1
6	Bit-addressable memory locations are: a.       10H through 1FH b.      20H through 2FH c.       30H through 3FH d.      40H through 4FH	1
7	If the __ pin is ___ , then we have the option of using the ____ ROM or EPROM together with _____ memory and devices. a.       EA, high, internal, external b.      EA, low, internal, external c.       EA, high, external, internal  d.      EA, low, external, internal	1
8	What is the Address (SFR) for TCON, SCON, SBUF, PCON and PSW respectively? a.       88H, 98H, 99H, 87H, 0D0H b.      98H, 99H, 87H, 88H, 0D0H c.       0D0H, 87H, 88H, 99H, 98H d.      87H, 88H, 0D0H, 98H, 99H	1
9	A HIGH on which pin resets the 8051 microcontroller? a.       RESET b.      RST c.       PSEN d.      RSET	1
10	When the 8051 is reset and the EA line is LOW, the program counter points to the first program instruction in the: a.       internal code memory b.      external code memory c.       internal data memory d.      external data memory	1
11	18H-1GH is range for a.       Bank 0 b.      Bank 1 c.       Bank 2 d.      Bank 3	1
12	External pull up registers are connected to port 0 so as to a.       Use port 0 as an i/p or an o/p, as it has open drain o/p b.      Configure port 0 as an i/p port c.       Configure port 0 as an o/p port d.      None of these	1
13	The time required for fetching, decoding and execution for an instruction is called a.       Machine cycle b.      instruction cycle c.       clock cycle d.      none	1
14	The register in the 8051 that is used to keep track of the memory address of the next op-code to be run in the program is the: a.       stack pointer b.      instruction pointer c.       accumulator d.      program counter	1