co561ad-s Connect One Ltd., co561ad-s Datasheet - Page 11

• Manufacturer Part Number: co561ad-s
• Description: The Co561ad-s, Ichip? Internet Controller?, Is Part Of A Family Of Intelligent Peripheral Devices That Provide Internet Connectivity Solutions To A Myriad Of Embedded Devices.
• Manufacturer: Connect One Ltd.

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Functional Description
3 Functional Description
3.1 Overview
Connect One’s iChip Internet Controller is an integrated, firmware-driven, self-contained
Internet engine that is available in a 68-pin PLCC package. iChip accepts simple ASCII
commands from a host CPU via a serial communication channel and manages an Internet
communication session through a PSTN or cellular modem. iChip supports commands to
communicate via TCP and UDP sockets; to send and receive Email, Web and WAP
pages/files, utilize FTP and Telnet; or to serve as a serial-to-Internet router.
iChip CO561AD-S contains non-volatile flash memory to store its firmware and Internet-
related configuration parameters. Remote firmware and parameter updates are supported
through the local host link, by Email, using a Web browser or by direct modem
communications.
3.2 Technical Specifications
3.2.1 General
iChip constitutes a complete Internet messaging solution for non-PC embedded devices.
It acts as a mediator device to completely offload the host processor of Internet-related
software and activities. An industry-standard asynchronous serial link connects iChip to
the host processor. Programming, monitoring and control are fully supported using
Connect One’s AT+i extension to the standard AT command set.
An additional industry-standard asynchronous serial link connects iChip CO561AD-S to
a standard serial modem. iChip supports transparent direct host-to-modem operations
using the standard AT command set.
3.2.2 Data Rates
CO561AD-S supports standard baud rate configurations from 2,400 bps up to 115,200
bps on the host asynchronous serial communications channel. The default baud rate may
be changed permanently by using the AT+iBDRF command. Auto baud rate setting is
supported for all baud rates.
3.2.3 Operation
All iChip Internet and parameter operations are controlled by AT+i commands.
3.2.3.1 Transparent Mode
iChip CO561AD-S defaults to Transparent mode, allowing the host to control the modem
device directly. Control is implemented by issuing standard AT commands to iChip. In
this mode, iChip CO561AD-S transparently echoes the AT commands to the modem, as
well as echoing the modem responses back to the host. In addition, hardware flow control
signals are emulated on the host side to reflect the levels set by the modem and vice-
iChip CO561AD-S Datasheet
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