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Environmental and Power Usage ..................................................................................... 13
Mechanical .......................................................................................................................... 14
Theory of Operation ........................................................................................................... 17
Power Supply ........................................................................................................................................ 17
Reset ..................................................................................................................................................... 17
BCM7421 CPU ..................................................................................................................................... 17
Built-in Flash ......................................................................................................................................... 17
SDRAM ................................................................................................................................................. 17
Serial Port ............................................................................................................................................. 18
Video Encoder and Filter ...................................................................................................................... 18
Audio Outputs ....................................................................................................................................... 18
On-Board LEDs ..................................................................................................................................... 18
On-Board Switch ................................................................................................................................... 19
Reset Switch/GPIO Button .................................................................................................................... 19
SDHC/SDXC and MicroSD Slots .......................................................................................................... 20
NAND Flash .......................................................................................................................................... 20
Ethernet ................................................................................................................................................ 20
USB ....................................................................................................................................................... 20
