SMSC EVB-EMC1002 Manual De Usuario

EVB-EMC1002/EMC1033 User Manual

 SMSC EMC1002/EMC1033

Revision 1.1 (12-14-06)

7

The Register Manager application (RegMan) initially displays the main Help screen, where detailed
description of the application’s features may be found. The Help screens can be displayed at any time
by selecting Help from the menubar or pressing the ? button on the toolbar. RegMan enables the user
to display temperature readings, set temperature limits and read/write configuration register values.

To open a Temperature History Graph window, select Plot -> Temperature History Plot from the
menubar. The history plot continuously updates the temperature reported by the temp sensor. There
are several display options, including which temperatures to display (internal, external, external2 for
EMC1033 only), whether limits should be displayed, and if so, for which temp sensor. See a typical
Temperature History Graph in 

 below:

..

The high and low limits are displayed as dashed lines, initially with values set in the EMC1002.ini file.
(or EMC1033.ini) These limits may be changed either in the register manager or by dragging the line
on the history plot. If any of the Temp High or Temp Low Limits are exceeded, the 

Alert/Therm2

 output

will assert. If the Ext THERM Limit or the Local THERM Limit are exceeded, the 

Addr

/

Therm

 output will

be asserted. 

The 

Alert/Therm2

 and 

Addr

/

Therm

 outputs are asserted active Low when a temperature exceeds the

programmed limits. The state of these outputs can be monitored by the associated bi-color LEDs or
test points on the PCB. 

The 

Alert/Therm2

 output pin can be configured to function as either an SMBus 

Alert

 output or as a

Therm2

 output. When configured as an SMBus 

Alert

 pin it will follow the SMBus Alert Response protocol

to clear the assert state. When configured as a 

Therm2

 output it will not require the SMBus Alert

Response Protocol to clear the pin’s status. This pin is initialized as a 

Therm2

 output by the

EMC1002/1033.ini file. Change register 0x09 bit #5 to “0” to configure the pin function to 

Alert

 mode.