||RS-232 to I2C Host Adapter with ASCII Fast Mode Interface|
iPort/AFM brings I2C directly to any computer with an RS-232 serial port. Just plug an iPort/AFM into your computer's serial port, load our free software, and you will be sending and receiving I2C messages at up to 400Kbit/s in seconds.
Over the past few years, the I2C Bus has expanded from simple control to data intensive applications. As new uses arise, bus bandwidth and message overhead have become key issues in product design and testing. The iPort/AFM, our third generation adapter for the I2C Bus, addresses these issues by supporting several bus speeds, including fast mode (400kbit/s), and three RS-232 transfer rates up to 115.2K baud. Implemented using a high-performance bus co-processor with optimized instruction set, the adapter also includes large message buffers (256 bytes) to reduce host computer and bus overhead. In addition to operating as a bus master or slave in a multi-master system, a built-in bi-directional /INT signal line allows the device to receive or generate slave only device notifications.
The iPort/AFM will work with any application written for our iPort/AI, only 4 to 40X faster. When operating with new applications written specifically for the iPort/AFM, speed increases up to 100X faster are possible.
Master and Slave, Transmit and Receive, iPort/AFM supports I2C message modes including Multi-Master, Arbitration Loss Detection, withÝ messages from 1 to 32K bytes in length.
Start sending I2C messages in minutes using our Message Manager
or Message Center applications included with each adapter. You
can also use your computer's terminal emulation software (like
Windows' Hyperterminal Program), or create your own custom I2C
applications using any programming tool that can access your computer's
ASCII Text Interface Commands
|Note: [CR] = Carriage
Return Code or Enter Key.
Syntax: [Select], (Optional), xx = [00..FE], n = [1..32767]
This command resets the iPort/AFM to its default state.
Display iPort/AFM status information.Ý
|/B[0|1|2][CR]||RS-232 Baud Rate Control (iPort/AFM
Set the RS-232 Baud Rate (0=19.2, 1=57.6, 2=115.2k)
|/C[CR]||Close I2C Connection
Disconnect from the I2C Bus.
|/Dxx[CR]||Set Destination I2C Slave Address
Set the destination I2C Slave Address for subsequent Master Transmit or Receive operations.
|/E[0|1][CR]||Echo/Prompt Control [0 = Disable, 1
Enable/Disable data entry echo and prompts.
|/F[0|1][CR]||Flow Control [0 = XON/XOFF, 1 = RTS/CTS]
Select serial communication handshaking protocol.
|/G[0|1][CR]||I2C General Call Control [0 = Disabled,
1 = Enabled]
Enables/Disables iPort/AFM response to I2C Bus General Call (00) messages.
|/H[0|1][CR]||Hex Only Display Control [0 = Disabled,
1 = Enabled]
Controls display format of received message data.
|/Ixx[CR]||Set iPort/AFMs Own I2C Slave Address
Sets iPort/AFM's own I2C Slave Address. iPort/AFM will respond to I2C Bus messages sent to this address.
|/K[0|1|2|3][CR]||I2C Bus Clock Rate Control (iPort/AFM
Set I2C Bus Clock Rate ControlÝ (0=23, 1=86, 2=100, 3=400 KHz)
|/M[CR]||Command Menu Display
Display iPort/AFM's Command Menu
|/N[0|1|A|R][CR]||iNterrupt Signal Monitor/Control Status (iPort/AFM Enhanced Feature)
Sets Monitor/Control/Status /INT Line. [0=Disable, 1=Enable, A=Assert, R=Release, [CR] = Status]
|/O[CR]||Open I2C Connection
Activates iPort/AFM as an I2C device attached to the bus.
|/*Rn[CR]||Master Read Message
Read the specified number of data bytes from the current Destination I2C Slave device. * = No Stop for Repeated Start
|/Stext[CR]||Slave Transmit Message
Write the specified data bytes to a requesting I2C Master Receiver device.
|/*Ttext[CR]||Master Transmit Message
Master Transmit the specified data bytes to the current Destination I2C Slave device. * = No Stop for Repeated Start
|/Un[CR]||I2C Bus Time-oUt
(iPort/AFM Enhanced Feature)
Set the I2C Bus Time-oUt in msec (0=Disable)
Version (iPort/AFM Enhanced Feature)
(Major XX.XX Minor) (NEW for Version 2.0 or later)
|/X[CR]||eXtended Commands (iPort/AFM Enhanced Feature)
Direct control of I2C Clock (SCL) and Data (SDA) lines. See User's Guide for details. (NEW for Version 2.0 or later)
|/Y[CR]||Display Tx bYte
Count (iPort/AFM Enhanced Feature)
How many bytes did slave acknowledge? (NEW for Version 2.0 or later)
Included Parts List
Power Configuration Options:
Standard (# MIIC-203)Ý
European (# MIIC-203E)Ý
International (# MIIC-203I)Ý
120VAC, 60Hz, USA Plug.(Wall Transformer # MWT-5VA)
220VAC, 50Hz, European Plug.(Wall Transformer # MWT-5VAE)
120/220/240VAC, 50-60Hz International Plug Selection. (Wall Transformer # MWT-5VAI)
Optional Add-On Parts
Product Environmental Specifications
See our Online Catalog for ordering information.
I2C is just a mouse click away TM
| MCC | | iPort | | iPort/AI | | iPort/AFM | | iPort/USB | | Bus Monitor | | Bus Monitor Plus |
| I2C Bus Ovr. | | LabVIEW | | Sample Prog. | | User's Guides | | FAQ | | iPort FAQ |
Page up-dated at June 04, 2007