AMC7812EVM Software Overview
Figure 30. Threshold Limit Configuration
The AMC7812 implements a technology to automatically cancel out the effect of series resistance caused
by the length of wire attached to any external remote temperature sensor. The resistance cancellation can
be disabled or enabled when the RC bit is cleared or set.
The conversion rate of the temperature data can also be set by adjusting the
Temp-Conversion Rate
dropdown, displayed in
.
Figure 31. Temperature Conversion Rate
The
GPIO + Temp
page also features four (
GPIO0 through GPIO3
) general-purpose I/Os of the AMC7812
device as shown in
Figure 32. GPIO Page
Use the GPIO Block section of the GPIO tab, as shown in
, to set the various GPIO functions.
The dropdown menu defaults to general-purpose I/O. To perform a write or read, set the W/R Function
pulldown to either Write or Read. The W/R value enables the user to input or observe the Boolean value
of the GPIO register. Press the Generate Write/Read button to write to or read from the GPIO pin.
Figure 33. GPIO Write/Read
21
SBAU177D – September 2010 – Revised August 2014
AMC7812EVM-PDK User’s Guide
Copyright © 2010–2014, Texas Instruments Incorporated
