T2_CIE_2

EEPROM typically uses which protocol for communication?

• SPI
• UART
• I2C
• USB

Answer explanation

EEPROM is commonly accessed using I2C.

Which register in LPC2148 controls I2C start and stop conditions?

• I2DAT
• I2CONSET
• I2CONCLR
• I2STAT

Answer explanation

I2CONSET sets STA and STO for I2C control.

The address of an I2C device is usually how many bits?

• 4
• 6
• 7
• 16

Answer explanation

Standard I2C addressing uses 7 bits.

Which peripheral is required to read analog input in LPC2148?

• DAC
• ADC
• PWM
• Timer

Answer explanation

ADC converts analog input to digital.

In LPC2148, the result of ADC conversion is stored in:

• ADCR
• ADDR
• ADGDR
• ADFLAG

Answer explanation

ADGDR holds global ADC result.

Which signal is used to start ADC conversion in software-controlled mode?

• BURST = 1
• START = 0
• START = 1
• EDGE = 1

Answer explanation

Start bit triggers ADC conversion.

DAC output of LPC2148 can be used to:

• Display voltage on LCD
• Control motor speed
• Generate waveforms
• Read GPS signals

Answer explanation

DAC is used for analog waveform output.

Which register holds the digital value for waveform generation using DAC?

• DACCTRL
• DACR
• DACVAL
• DACOUT

Answer explanation

DACR holds value for DAC output.

The DAC in LPC2148 has a resolution of:

• 10-bit
• 8-bit
• 12-bit
• 16-bit

Answer explanation

DAC provides 10-bit resolution.

Which of these is NOT a valid application of waveform generation via DAC?

• Audio signal synthesis
• PWM control
• Analog test signal generation
• Function generator

Answer explanation

PWM is separate from DAC functionality.