If I want an interrupt to occur when the I/O pin PORT C pin 0 changes from high to low, which pin change interrupt needs to be enabled? O a. PCIEO O b. INT1 O. PCIE2 O d. INTO O e. PCIE1 How many general purpose digital I/0 ports are possible on the ATmega328P? О а. 19 ОБ. 16 O. 22 O d. 8

If I want an interrupt to occur when the I/O pin PORT C pin 0 changes from high to low, which pin change interrupt needs to be enabled? O a. PCIEO O b. INT1 O. PCIE2 O d. INTO O e. PCIE1 How many general purpose digital I/0 ports are possible on the ATmega328P? О а. 19 ОБ. 16 O. 22 O d. 8

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Concept explainers

Transmission media

A communication channel that transmits data from a source to a recipient is referred to as "transmission media." Electromagnetic impulses are used to transmit data. Transmission media's primary purpose is to transmit data in the form of bits via a local area network (LAN). In data transport, it is the physical link that connects the transmitter and receiver. Transmission medium is part of layer 1 or physical layer of the ISO/OSI (Open System Interconnection) model.

Question

I want to use I/O pin PORT D pin 3 as an output. What is the best code to configure the pin?
a. PORTD = _BV(3);
O b. PORTD |= _BV(3);
O . PORTD &= ~_BV(3);
O d. PORTD = ~ _BV(3);
O e.
None of the other options
If I want an interrupt to occur when the I/O pin PORT C pin 0 changes from high to low, which pin
change interrupt needs to be enabled?
a. PCIEO
O b. INT1
Oc.
PCIE2
O d. INTO
Oe.
PCIE1
How many general purpose digital I/O ports are possible on the ATmega328P?
O a. 19
ОБ. 16
Oc.
22
O d. 8

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