User Manual

5.3 Analog Inputs

There are 8 pins that can be configured as analog inputs. Refer to Table 4-2

for the specific I/O pin capabilities.

Using the analog input pins consists of the following:

Configuring the pins

Select direction as analog input. Select the analog-to-digital

converter settings for each specific pin configured as an analog input

(refer to Section 4.2.7).

Configuring the sleep state of the pins

Select direction (input or output), enable or disable pull-up or pull-

down resistors for pins configured as digital inputs, and set the

output value for pins configured as digital outputs. Note that pins

configured as analog inputs under normal operating mode can be set

as anything when the Matrix module is put into Sleep Mode.

Reading the state of the pins configured as analog inputs

Read the analog digital value (0 or 1) of the signal applied to the pins

configured as inputs.