Atmel AT01607: XMEGA C Schematic ChecklistAtmel AT01607: XMEGA C Schematic Checklist
10
Table 5-1.
USB interface checklist.
Signal
name
Recommended pin connection
Description
D+
•
The impedance of the pair should be matched on the
PCB to minimize reflections
•
USB differential tracks should be routed with the
same characteristics (length, width, number of vias, etc.)
•
Signals should be routed as parallel as possible, with
a minimum number of angles and vias
USB full speed / low speed positive
data upstream pin
D-
USB full speed / low speed negative
data upstream pin
6.
Suggested reading
6.1
Datasheets and manual
The datasheet and the manual contain block diagrams of the peripherals and details about implementing firmware for
the device. The datasheet and the manual are available on
section.
