co711ag Connect One Ltd., co711ag Datasheet - Page 14

• Manufacturer Part Number: co711ag
• Description: Ichip? Co710ag And Ichipsec? Co711ag Internet Controllers? Are High-performance, Firmware-based Intelligent Peripheral Devices That Provide Internet Connectivity Solutions For A Wide Range Of Embedded Devices.
• Manufacturer: Connect One Ltd.

Connect One
Functional Description
4.2.3 Remote Internet Firmware Update
New firmware may be uploaded from a remote location using standard Internet
protocols. iChip accepts firmware updates from a remote FTP or HTTP server, as well
as firmware uploads from a remote browser through iChip’s Web server.
4.2.4 Local BUS Connection to an Ethernet LAN Controller
iChip interfaces an Ethernet LAN controller connected to its 16-bit local BUS.
4.2.5 Host Connection
iChip can interface a host processor through one of two methods: Serial or Parallel.
4.2.5.1 Host Serial Connection
iChip 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,
DSR, CD and RI lines, is supported.
iChip supports standard baud rate configurations from 2,400 bps up to 230,400 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 except 230,400 bps.
4.2.5.2 Host Parallel Connection (Future implementation)
iChip will support an 8-bit parallel BUS interface with some additional logic. The
parallel BUS may be defined as an 80x86 (Intel) BUS or an MC68xxx (Motorola)
BUS. This interface will be fully implemented from firmware version 8.01 (expected
in 2006).
4.2.6 Serial Connection to Analog Modem
iChip 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. It does not support the RI line.
4.2.7 Hardware and Software Flow Control
Hardware flow control is supported between the host serial connection and iChip.
Flow control is programmed via the AT+iFLW command. The default flow control
method is set to “Wait/Continue” software flow control (which is similar to
XON/XOFF software flow control) between iChip and the host processor.
The hardware flow control method frees the host CPU from monitoring and handling
the software flow control. The host can program iChip to either use hardware flow
control or “Wait/Continue” software flow control. The flow control mechanism is
based on the RTS/CTS signals. The host parallel connection has built-in hardware
flow control signals as part of the interface logic.
4-3
iChip CO710AG/iChipSec CO711AG Data Sheet