Digital Logic Devices and FPGA Programming Key Concepts

FPGA

Field Programmable Gate Arrays

SPLD

Simple Programmable Logic Devices.

LC

Logic Cell .

EAB

Embedded Array Block

PIP

Programmable Interconnect Point

MAC

Multiply Accumulate.

ASIC

Application Specific Integrated Circuits.

VHDL

Very High Speed Integrated Circuits Hardware Description Language

Altera's EP5CSEMA5F31C6 has 32,070 embedded 27x27 bit multipliers and 87 ALMs.

False

Altera's EP5CSEMA5F31C6 has 397 M10K memory blocks.

True

Xilinx Spartan CPLD family has zero standby power consumption.

False

Xilinx offers with the Spartan family 1,000,000 gates for 10$.

False

Power consumption in FPGAs is proportional to the product of frequency and number of logic cells running at this frequency.

True

EPROM FPLDs provide "copy protection," but E2 PROM FPLDs do not.

False

SRAM FPLDs are reprogrammable and volatile.

True

E2 PROM FPLDs are reprogrammable and volatile.

False

Identifier: Ports

True

Identifier: _Y_E_S_

False; cannot start or end with an underscore (_)

Identifier: One-Way

False; cannot contain hyphens (-)

Identifier: XXyYzZ

True

Identifier: BEGIN_IF

True

Identifier: Signal3

True

My_Guess

True

Identifier: 4you

False; cannot start with digit "4"

Identifier: B"0_0_0_0"

True

Identifier: B"678"

B " " means binary 0 or 1 only allowed inside

Identifier: O"678"

O " " means octal 0-7 only allowed inside

Identifier: X"678"

True

5#_4321_#

False; cannot can't start/ end with "_" {base#value#}

2#210#

False; {base#value#}

integer range 10 to 20;

5

integer range -2**6 to 2**4-1;

7

integer range –10 to –5;

5

integer range -2 to 16;

6

The two most frequent conversion functions are conv_integer() and conv_std_logic_vector().

True

The BOOLEAN data type contains the 2 values HIGH and LOW

False

The right data types of an VHDL assignment are automatically converted with a cast operation to match the left side data type

False

The INTEGER data type allows Boolean operations such as AND or XOR

False

The INTEGER data type has by default a 32-bit size

True

In STANDARDLOGIC data type the high impedance values are coded with ‘I’

False

The STANDARD_LOGIC data type contains 9 different values

True

_ The REAL data type is a floating-point data type.

True