co561ad-d Connect One Ltd., co561ad-d Datasheet - Page 12

• Manufacturer Part Number: co561ad-d
• Description: The Co561ad-d Ichip Plus? Internet Controller? Is A Low-cost Intelligent Peripheral Device That Provides Internet Connectivity Solutions To A Myriad Of Embedded Devices.
• Manufacturer: Connect One Ltd.

Functional Description
AT commands to iChip Plus. In this mode, iChip Plus transparently echoes the AT
commands to the modem, as well as echoing the modem responses back to the host. iChip
Plus supports interlacing AT+i and AT commands while the modem is in Command
mode.
When the modem is put into data mode, by issuing a dial command, Transparent mode is
sustained throughout the data-mode session.
3.2.3.2 Command Mode
iChip Plus commands are implemented using the AT+i command set. Command flow
exists only on the host serial bus between the host and iChip Plus.
3.2.3.3 Internet Mode
iChip Plus enters Internet mode after being issued an Internet command such as to send
or receive an Email message, open a socket, etc. iChip Plus attempts to establish an
Internet connection and carry out the required activity through the communication
platform link. While in this mode, AT+i commands are supported to monitor and control
the process when needed.
3.2.3.4 Direct Modem Firmware Update Mode
In a modem configuration, issuing an AT+iFU command enters this mode. iChip Plus
monitors the modem for an incoming call by detecting the ‘RING’ response. When
called, iChip Plus instructs the modem to answer the call and assumes a YMODEM
session to receive a file containing a firmware update. The incoming file contents are
downloaded and authenticated. If the new firmware image checks out the existing
firmware is replaced in the on-chip flash memory and iChip Plus is reinitialized.
3.2.3.5 SerialNET Mode
iChip Plus SerialNET mode extends a local asynchronous serial link to a TCP or UDP
socket across a LAN or Internet. Its main purpose is to allow simple devices, which
normally interact over a serial line, to interact in a similar fashion across a network,
without requiring any changes in the device itself. iChip Plus contains a set of associated
operational parameters, which define the nature of the desired network connection. iChip
Plus supports both Server and Client modes in SerialNET mode. AT+i commands are not
required to operate SerialNET mode. Thus, SerialNET mode may be used in existing
systems with little or no need to modify the application program.
3.2.4 Remote Internet Firmware Update
New firmware may be uploaded from a remote location using standard Internet protocols.
iChip Plus accepts Emails with new firmware attachments, as well as firmware uploads
from a remote browser through iChip Plus’s Web server.
iChip CO561AD-D Datasheet
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