STK1002/USB
From AVRFreaks Wiki
AP7000 supports full speed and Hi-Speed USB 2.0.
Schematics
The following schematics show the connection on STK1002. Please refer the AP7000 data sheet for details on how to connect the USB interface to AP7000 in your design.
The capacitors C57 and C58 are not mounted on the circuit board. The footprints are meant to be used for testing of the USB interface on AP7000. R4, R5, C57 and C58 are mounted as close to AP7000 as possible and C57 and C58 are placed such that no stubs are introduced on the transmission line.
Please refer the AP7000 data sheet for a guideline on how to route USB signals.
Intel has also released a High Speed USB Platform Design Guidelines with good information about routing.
Signals
Signal | Description |
---|---|
FSDP | Full Speed Differential Plus |
FSDM | Full Speed Differential Minus |
HSDP | High Speed Differential Plus |
HSDM | High Speed Differential Minus |
VBG | Band Gap Voltage |