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→SD Interface
<nowiki>**</nowiki>Overall trace length - i.e. Bora + carrier board - should not exceed 10cm. If this is not possible, try to avoid parallel routing in order to reduce crosstalk, and refer them to a ground plane.
=== CAN Interface ===
{| {{table border=1}}
| align="center" style="background:#f0f0f0;"|''' '''
| align="center" style="background:#f0f0f0;"|''' Min '''
| align="center" style="background:#f0f0f0;"|''' Typ '''
| align="center" style="background:#f0f0f0;"|''' Max '''
|-
| Differential Mode impedance(ohm)||align="center"|108||align="center"|120||align="center"|132
|-
| Matching required||align="center"|-||align="center"|-||align="center"|-
|-
| Min Interpair spacing||align="center"|-||align="center"|4xgap||align="center"|-
|-
| Max allowed parallel routing(mils)||align="center"|-||align="center"|-||align="center"|-
|-
| Max trace Length||align="center"|-||align="center"|-||align="center"|-
|-
| Max via allowed||align="center"|-||align="center"|-||align="center"|-
|-
==Functional guidelines==
