co661al-s Connect One Ltd., co661al-s Datasheet - Page 12

• Manufacturer Part Number: co661al-s
• Description: The Co661al-s Ichip? Internet Controller? Is Part Of A Family Of Intelligent Peripheral Devices That Provides Internet Connectivity Solutions To A Myriad Of Embedded Devices.
• Manufacturer: Connect One Ltd.

Functional Description
3.2.2.2 Command Mode
iChip commands are implemented using the AT+i command set. Command flow exists
only on the host serial channel between the host and iChip.
3.2.2.3 Internet Mode
iChip enters Internet mode after being issued an Internet command such as to send or
receive an Email message, open a socket, etc. iChip attempts to establish an Internet
connection and carry out the required activity over PPP. While in this mode, AT+i
commands are supported to monitor and control the process when needed.
3.2.2.4 SerialNET Mode
iChip SerialNET mode extends a local asynchronous serial link to a TCP or UDP socket
across the 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 contains a set of associated operational parameters,
which define the nature of the desired network connection. iChip 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.
3.2.2.5 Direct Modem Firmware Update Mode
Issuing the AT+iFU command enters Firmware Update mode. iChip CO661AL-S
monitors the modem for an incoming call by detecting the ‘RING’ response. When
called, iChip CO661AL-S 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 CO661AL-S is
reinitialized.
3.2.3 Remote Internet Firmware Update
New firmware may be uploaded from a remote location using standard Internet protocols.
iChip accepts Emails with new firmware attachments, as well as firmware uploads from a
remote browser through iChip’s Web server.
3.2.4 Serial Connection to Analog Modem
iChip CO661AL-S supports a full-duplex, TTL-level serial communications link with the
modem device. Full EIA-232-D hardware flow control, including Tx, Rx, CTS, RTS,
DTR, DSR and CD lines, is supported. However, it does not support the RI line.
iChip CO661AL-S Datasheet
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