Mobile and Networked Embedded System Flashcards
The entire collection is called
a network
architecture
IMPLEMENTING THE REMOTE DEVICE MODEL:
The entire collection is called a ____ , and the set of protocols used is
called a ______.
network
architecture, protocol stack,
The information sent
on each level is called a ____.
message
was created by the International
Organization for Standardization (ISO),
an international standard-setting body
OSI (Open Systems Interconnection)
model
It
was designed to be a reference model for
describing the functions of a
communication system.
OSI (Open Systems Interconnection)
model
model was created in the
1970s by the Defense Advance
Research Project Agency (DARPA) as
an open, vendor-neutral, public
networking model.
The TCP/IP
TCP/IP layers:
Network Access, Internet, Transport, and
Application
OSI layers:
Application, Presentation, Session, Transport, Network, Data Link, Physical
In ____, they are 4 bytes, or octets, in length. It is
common to write _____ addresses in dot-decimal
notation, such as 128.252.73.216
IPv4
addresses are customarily written as eight groups of
four hexadecimal digits separated by colons, such as
2002:80fc:a0ba::80fc:a0ba (one sequence of groups
consisting of four 0 digits can be omitted, as in this
example; leading zeros can always be omitted).
IPv6
IANA in turn grants IP address
allotments to five regional
registries:
African Network Information Centre (AfriNIC)
* American Registry for Internet Numbers (ARIN) for
the United States, Canada, and parts of the Caribbean
* Asia-Pacific Network Information Centre (APNIC)
* Latin American and Caribbean Internet Addresses
Registry (LACNIC) for Latin America and parts of
the Caribbean
* RIPE NCC for Europe, Central Asia, and the Middle
East
The Models
- Client-Server
- Peer-to-Peer
- Group Multicast
______ involves the
exchange of request-reply messages
according to the following sequence
client-server pattern
The client-server pattern involves the
exchange of request-reply messages
according to the following sequence.
- Client: Transmit a request to the
server process and block. - Server: Execute the request.
- Server: Return the reply to the client
follows naturally
from the client-server model.
peer-to-peer model
combines the
familiar (local) procedure call model
with the client-server model
Remote Procedure Call (RPC) paradigm
A master can initiate a transfer cycle only if the bus
is not in use
Arbitration
Each master typically has its own internal clock, and
each is responsible for generating the SCL clock for
the bus.
Synchronization
corresponds to the
physical and data link layers of the
ISO/OSI reference model.
CAN Network
The standard CAN message format
- SOF
- Identifier
3.RTR - IDE
5.r0
6.DLC
7.Payload
8.CRC
9.ACK
10.EOF
11.IFS