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

• Manufacturer Part Number: co561ad-l
• Description: The Co561ad-l Ichip Lan? 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.

11-3700-00
Functional Description
3.2.3.2 Internet Mode
iChip LAN enters Internet mode after being issued an Internet command such as to send
or receive an Email message, open a socket, etc. While in this mode, AT+i commands are
supported to monitor and control the process when needed.
3.2.3.3 SerialNET Mode
iChip LAN 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 LAN contains a set of associated
operational parameters, which define the nature of the desired network connection. iChip
LAN 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 LAN accepts Emails with new firmware attachments, as well as firmware uploads
from a remote browser through iChip LAN’s Web server.
3.2.5 Host Serial Connection
iChip LAN supports a full-duplex, TTL-level serial communications link with the host
processor. Full EIA-232-D hardware flow control, including Tx, Rx, CTS, RTS, DTR,
and DSR lines, is supported.
3.2.6 Hardware and Software Flow Control
Hardware flow control is supported between the host CPU and iChip LAN. Flow control
is programmed via the AT+iFLW command. The default flow control methods are set to
“Wait/Continue” software flow control between iChip LAN and the host (this method is
similar to XON/XOFF software flow control).
The hardware flow control method frees the host CPU from monitoring and handling the
software flow control. The host can program iChip LAN to either use hardware flow
control or to use “Wait/Continue” software flow control between iChip LAN and the host
CPU. Hardware flow control mechanism is based on the RTS/CTS signals.
iChip CO561AD-L Datasheet
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