Datasheet

SOMO-II Embedded Audio-Sound Module
Contents
1. Description ............................................................................................................................. 3
2. Features ................................................................................................................................. 3
3. Pin Configuration and Summary .............................................................................................. 4
4. Pin Description ....................................................................................................................... 5
Micro-controller Interface Pins .............................................................................................................. 5 4.1.
Key Interface Pins (Not ADKEYs) ............................................................................................................ 5 4.2.
Key Interface Pins (ADKEY’s) .................................................................................................................. 5 4.3.
Audio Output and Control Pins .............................................................................................................. 5
4.4.
System Pins ............................................................................................................................................ 5 4.5.
5. Operating Modes .................................................................................................................... 6
SERIAL MODE ......................................................................................................................................... 6 5.1.
SERIAL MODE – Example Connection Diagram ...................................................................................... 9 5.2.
KEY MODE ............................................................................................................................................ 10 5.3.
Connecting up the Resistors and Pushbuttons to the ADKEY inputs ................................................... 11 5.4.
KEY MODE - Example Connection Diagram .......................................................................................... 12 5.5.
6. Files & Folder Structure......................................................................................................... 13
7. Media – micro-SD and USB Flash ........................................................................................... 14
Micro-SD cards ..................................................................................................................................... 14 7.1.
USB Flash Drive .................................................................................................................................... 14 7.2.
8. Mechanical Dimensions ........................................................................................................ 14
9. Development and Support Tools ........................................................................................... 14
Interfacing 4D Systems Display Modules ............................................................................................. 14 9.1.
10. Optional Connections ......................................................................................................... 15
USB Socket for USB Flash Drive .......................................................................................................... 15 10.1.
11. Specifications and Ratings ................................................................................................... 16
12. Legal Notice ........................................................................................................................ 17
13. Contact Information............................................................................................................ 17