Table 14. Microphone Connector Pinout (J460); Table 15. Audio Jumper (P420) - Motorola F3030A Developer's Manual

3.4.3.2 Microphone
The microphone interface is designed as a hands-free microphone. The microphone connector (J460) is labeled MIC.
3.4.3.3 Audio Source Selection
Microphone and speaker audio can be routed through two different sources: the g20 audio amplifiers or the g20 digital audio
interface. The Developer Board includes a CODEC that converts the g20 digital audio data to analog audio signals.
The P420 jumper selects the speaker and microphone source, as indicated in Table 15. This enables you to test the digital or
analog audio channels.
98-08901C67-O

Table 14. Microphone Connector Pinout (J460)

Pin #
1
2
3
4
5

Table 15. Audio Jumper (P420)

P300 Jumper
Position
Selected Mode
1 2 3
• •
Digital audio
• •
Analog audio
Audio disconnected
Description
Ground
Microphone audio-in
Ground
Ground
Ground
USB Source
CODEC audio I/O
G20 audio I/O
Developer Board and Interfaces Description
21