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Correct choice is (a) True

The best I can explain: Level shifters are used in multi-design, different BLOCKS work on different VOLTAGE levels. So when a SIGNAL passes from ONE voltage domain to another voltage this is needed particularly when a signal passes from low level to high level.

Right ANSWER is (a) True

For EXPLANATION I would say: All the products have an INBUILT memory as well as an extended memory.

Right choice is (c) MALE HDMI and Adapter

The explanation: HD TV’s and most LCD Monitors can be connected using a full-size male HDMI cable, and with an inexpensive adapter if DVI is used. HDMI VERSION 1.4 cable is recommended.

The correct answer is (a) Fetch, Decode, Write

For explanation: ARM7 core has 3-stage pipeline that increases instruction flow through processor up to three times. So each instruction is executed in 3 stages:

Fetch – instruction is fetched from memory and placed in pipeline

Decode – instruction is fetched and data-path signals prepared for next cycle

Execute – instruction from prepared data-path reads from REGISTRY bank, SHIFTS OPERAND to ALU and WRITES generated result to dominant register.

Right choice is (a) 16

The EXPLANATION: It has LOTS of digital input/output PINS, 14 can be used as PWM output 16 ANALOG inputs, a USB connection, a power jack, and a reset BUTTON.

Correct choice is (a) ARM7DI

To explain: ARM7DI is capable of running a VIRTUAL memory system. The ABORT input to the processor MAY be used by the memory MANAGER to inform ARM7DI of page faults.

Right choice is (c) 40 pin with DIP

For explanation I would SAY: The 8051 FAMILY members have different packages, such as DIP(Dual In Line), QFP(QUAD Flap PACKAGE), LLC(Leadless Chip Carrier) they all have 40 pins that are dedicated to different functions. Especially 8051 have a Dual in Line package.

The correct choice is (b) Thumb, DEBUG, MULTIPLIER, ICE

To explain: The ARM7TDMI(ARM7 + 16 bit Thumb + JTAG Debug + fast Multiplier + enhanced ICE) processor implements the ARM4 INSTRUCTION set.

The correct option is (b) Add on modules

Easiest explanation: The Arduino BOARDS can CONNECT with add- on modules termed as shields. Multiple, and possibly stacked shields MAY be individually addressable via an I2C serial bus.

The correct option is (c) A,R,M

Best EXPLANATION: ARMv7 defines 3 architecture “profiles”:

A-profile, Application profile

R-profile, Real-time profile

M-profile, MICROCONTROLLER profile.

The correct option is (a) ADVANCED RISC Machine

The explanation is: ARM, originally ACORN RISC Machine, LATER Advanced RISC Machine, is a family of reduced instruction SET computing (RISC) architectures for computing processors.

The correct OPTION is (a) True

Easiest explanation: Some ARM7 cores are obsolete. It had a JTAG based on-chip DEBUGGING; the preceding ARM6 cores did not support it. The “D” REPRESENTED a JTAG TAP for debugging.

Correct choice is (C) 8-bit auto reload mode, 8-bit auto reload time/counter; THx holds a VALUE which is to be RELOADED into TLx each time it overflows

Easiest explanation: It is an 8 bit timer that allows only values of 00 to FFH to be loaded into the timer’s register TH. After TH is loaded with 8 bit value, 8051 gives a copy of it to TL.

Correct option is (c) Program Store Enable

The explanation: This is an OUTPUT pin. In an 8031-based SYSTEM in which an external ROM HOLDS the program code, this pin is connected to the OE pin of the ROM.

Right option is (a) True

The BEST I can explain: That is used for multiplexting ADDRESS and data IE., the same LINE carries address and data. To INDICATE when it carries address, ALE is emitted by 8051.

Correct choice is (c) 8

For explanation: There are 4 Arduino boards and 4 Arduino SHIELDS that FIT on top of Arduino compatible boards to PROVIDE additional capability like connecting to the internet, motor controller, LCD screen controlling etc.,.

The correct choice is (b) Screen Port_Name115200

Best EXPLANATION: This command is used to OPEN and write or MODIFY data on GNU screen and we should write in the terminal window.

The correct choice is (b) Pico-Power

For explanation I WOULD say: Picopower TECHNOLOGY employs advanced features like MULTIPLE CLOCK domains, DMA and EVENT systems to minimize power consumption.

Correct option is (c) 4

Easy EXPLANATION: The ARM7TDMI-S PROCESSOR has 4 types of memory cycle: Non sequential cycle, Sequential cycle, cp processor register transfer cycle, INTERNAL cycle.

Right option is (c) Pins have more than one function

To elaborate: The pin CONNECT BLOCK allows selected pins of the MICROCONTROLLER to have more than one function. Configuration REGISTERS control the multiplexers to ALLOW connection between the pin and the on chip peripherals.

Right option is (a) One

Explanation: Pipelining is a technique for IMPLEMENTING instruction level parallelism within a SINGLE processor. Pipelining attempts to keep EVERY part of the processor BUSY with some INSTRUCTIONS, by dividing incoming instructions into the series of sequential steps.

Correct ANSWER is (B) 32kB

Explanation: It is the first series of ARM7. This memory is USED for both code and data storage. Programming of the flash memory may be accomplished in several ways. It can also be programmed in system via serial port.

The CORRECT answer is (d) 65 pin with DIP

Best explanation: The ARM7 family members have different packages, such as DIP(Dual In Line), QFP(Quad Flap Package), LLC(Leadless Chip CARRIER) they all have 40 pins that are DEDICATED to different FUNCTIONS. Especially 8051 has a Quad Flap Package.

Correct choice is (d) 130 MIPS

The BEST explanation: It is a versatile device for mobile devices and other low POWER electronics. This processor ARCHITECTURE is capable of up to 130MIPS on a typical 0.13 um process.

The CORRECT answer is (d) Pin 9

Best EXPLANATION: RESET pin is utilized to set the micro CONTROLLER 8051 to its primary values, whereas the micro controller is functioning or at the early beginning of application. The reset pin has to be set elevated for two machine rotations.

The correct ANSWER is (b) RAM memory

Explanation: The general PURPOSE memory is called as the RAM memory of the 8051 microcontroller, which is divided into 3 AREAS such as banks, bit-addressable area, and scratch-pad area.

Right option is (a) External INTERRUPT 1 EDGE flag. Not related to timer operations

To elaborate: TCON register has 8 bits. 3rd bit has an IE1 register. This is an external interrupt.

The CORRECT choice is (a) 13-bit timer MODE, 8-bit timer/counter THx and TLx as 5-bit prescalar

To elaborate: Mode 0 is exactly same like mode 1 EXCEPT that it is a 13-bit timer instead of 16-bit. The 13-bit counter can hold values between 0000 to 1FFH in Th-Tl.

Right option is (c) 80h to ffh

The explanation is: In 8051 there certain REGISTERS which uses the RAM addresses from80h to ffh. These are called as Special Function Registers. Some of the SRFrs are I/o ports and CONTROL operations as TCON, SCON, PCON.

Correct CHOICE is (b) Distance between 2 transistors

Best EXPLANATION: Micro MEANS 10-6 which GIVES the distance between 2 element transistors which is CALLED as Micron Technology.

The correct choice is (d) Sheilds

To EXPLAIN: Shields are pre- BUILT circuit BOARDS that fit on top of board and provide ADDITIONAL capabilities like controlling motors, connecting to internet, PROVIDING cellular etc.

The correct choice is (d) ARM

To elaborate: ARM assembler is used in RASPBERRY Pi. Machine language is built up from DISCRETE statements or instructions IMPLEMENTED by a PARTICULAR processor.

The correct choice is (b) 10 bit

To ELABORATE: The converters are single 10-bit successive approximation ANALOG to digital converters. While ADC0 has 6 CHANNELS, ADC1 has 8 channels. And DAC output voltage is the vref voltage.