I2C Bus/SMBus Monitor
Part #MIIC-101
The MIIC-101 Bus Monitor is a Stand-Alone and Remote Troubleshooting Tool for the I2C (Inter Integrated Circuit) serial bus developed by Philips Semiconductor, or the System Management Bus (SMBus) developed by Intel, and other dervived protocols.

When connected to an I2C Bus, or SMBus network, the MIIC-101 Bus Monitor can collect, display or upload information on all bus activity.

For additional selection information, see our "Which I2C Bus Monitor is Right For Me" FAQ.
 

 
PRODUCT HIGHLIGHTS
  • Stand Alone or Remote I2C Bus, and SMBus Troubleshooting Tool.
  • Real Time Trace to 100 kbit/s.
  • Supports General Calls, and Multi-Master/Multi-Slave Addressing.
  • Displays Start/Stop Events, Device Addresses, Read/Write Requests, Acknowledgements, and Data.
  • Optional I2C Analyzer Software Package.
 		 I2C Bus Monitor User's Guide PDF (648KB)
KEY FEATURES TYPICAL APPLICATIONS
PRODUCT SPECIFICATIONS

I/O PORTS

I2C Bus/SMBus

A test cable provides connection to the network under test. Test clips are provided for:

SCL Clock Line
GND Ground Line
SDA Data Line
+5 External Supply

RS 232 Port

An RS-232 port connector and cable provides connection to PC Host system.

ADDRESS SELECTION

Bus activity can be monitored on a selective or non selective basis. Messages to all or a specified bus address can be captured in the trace buffer.

OPERATING MODES

View Status Mode

In View Status Mode, the unit displays bus line levels. Displayed information includes:
 
A..bV
SCL
SDA
TRIG		 +5v
I2C Clock
I2C Data
Trigger

Forward Trace Mode

Forward Trace collects a trace of up to 2700 bus messages with optional Pre Trigger.

Backward Trace Mode

Backward Trace maintains a trace of up to the last 2700 bus messages with optional Post Trigger. 
MIIC-101
View Mode

View Mode displays captured bus activity on the built-in display. Displayed information includes:

Start/Stop Events
Message and Byte Number
Destination Addresses
Read/Write Requests
Receiver Acknowledgements
Transmitted Data in Hex and ASCII

Both forward and reverse scrolling of captured data bytes or messages is supported.

Display syntax:
 
I2C Event
Start of Buffer
Start Read w/Ack
Data w/Ack
Stop Condition
End of Buffer		 Display
-START OF TRACE-
MMMM:START AA RA
MMMM:NNN DD 'C'A
MMMM:STOP
--END OF TRACE--

where:
 
MMMM
NNN
AA
DD
C
R/W
N/A		 Trace Message Number
Transaction Byte Number
Device Address
Data in Hexadecimal
Data in ASCII
Read/Write Request
Receiver Non/Acknowledgement

Optional Windows-based I2C Analyzer Software Package available.

POWER

Internal 9V battery, +5V bus power, or external  power supply (included).
 

 

Included Parts List:

Optional Add-On Parts: Product Environmental Specifications: See Environmental Specifications FAQ

See our Bus Monitor FAQ for answers to your technical questions, or our Online Catalog for ordering information.

I2C is just a mouse click away TM