General Function Switch - S140 - Motorola G24-L Technical Information

Configuration
The GPIO switches have two positions: Logic High (left position, marked with "H") and Logic
Low (Right position, marked with "L"). When setting a switch to "H" (default position), the
GPIO line is not connected (uses the internal G24-L pull-up resistor), when setting the GPIO to
"L", the line is being shorted to ground.
Caution:

General Function Switch - S140

Figure 2-16
Figure 2-16: S140 Switches
The S140 switches description and functionality are shown in
Reference
AUDIO
Selecting the audio speaker
output path.
SIM
Used for development only.
26
In order to avoid unnecessary load on one of the GPIO lines, verify that when a
GPIO line is configured as an output and is set to logic High state, the
corresponding GPIO switch is set to "H".
shows the S140 switches.
S140
Table 2-14: S140 Switches Functionality
Description
Disabling the on board audio
CODEC to Audio speaker.
Speaker and microphone analog
audio are routed from the G24-L
module.
G24-L Developer's Kit
Table
"Off" State
Enabling the on board
audio CODEC to Audio
speaker. Audio is routed
using the G24-L digital
audio signals.
2-14.
"On" State
September 25, 2007