co120sq Connect One Ltd., co120sq Datasheet - Page 11

• Manufacturer Part Number: co120sq
• Description: The Ichip? Co120sq Internet Controller? Is A High-performance, Firmware-based Intelligent Peripheral Device That Provides Internet Connectivity Solutions For A Wide Range Of Embedded Devices.
• Manufacturer: Connect One Ltd.

5 Functional Description
5.1 Overview
Connect One’s CO120SQ iChip Internet Controller is an integrated, firmware-driven,
self-contained Internet engine that is available in a 64-pin TQFP package. iChip accepts
simple ASCII commands from a host CPU via USB
and manages an Internet communication session through a linked modem, Ethernet
controller, or an 802.11b WiFi CF adapter card.
iChip CO120SQ has several applicable firmware “flavors” that define its pin-out and
functionality. Each flavor defines a different pin-out and feature set. iChip is supplied only
with a preloaded Boot Loader, which may be used to download the desired firmware
flavor. iChip contains non-volatile FLASH memory to store the selected firmware flavor
and all Internet-related operational parameters.
Connect One offers iChip firmware flavors that may be used to manipulate TCP and
UDP sockets; function as a Web server (to be implemented), retrieve Web server
contents over HTTP 1.1; send textual Email messages; utilize FTP to manipulate, send
or receive files; or serve as a serial-to-Internet router (to extend a local serial port over
TCP or UDP sockets across the Internet). iChip CO120SQ firmware flavors include
drivers necessary to drive a landline or cellular modem, an external SMSC LAN91C111
or ASIX AX88796L Ethernet LAN controller in a 10/100BaseT Ethernet environment, or
an 802.11b WiFi CF adapter card that is based on the PRISM 2.5/3.0 WiFi chipset.
5.2 Technical Specifications
5.2.1 General
iChip constitutes a complete Internet Protocol (IP) 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 USB
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.
5.2.2 Operation
All iChip Internet and parameter operations are controlled by AT+i commands.
5.2.2.1
iChip commands are implemented using the AT+i command set. Hardware or software
flow control exists on the serial channel between the host and iChip.
5.2.2.2
iChip enters Internet mode after being issued an Internet command such as to send an
Email message, open a socket, etc. iChip attempts to establish an Internet connection
and carry out the required activity through the LAN, WiFi adapter, or modem. While in
this mode, AT+i commands are supported to monitor and control the process when
needed.
Note 1: Future implementation.
iChip CO120SQ Data Sheet
Command Mode
Internet Mode
1
or a serial communication channel
1
or asynchronous
Pin Descriptions
5-1