Quartz Crystal Placement And Signal Routing - Fujitsu ALL FR 460 Series Application Note

FR460 Hardware Set Up
Chapter 2 Layout and Electromagnetic Compatibility
If mounting on both sides is not possible the following placement and routing is recommended:

2.5 Quartz Crystal Placement and Signal Routing

The crystal has to be placed as nearest as possible to the MCU. Therefore the oscillator
capacitors have to be placed "behind" the crystal.
For single metal layer circuit board the following placement and signal routing is
recommended:
For double sided metal layer layout the following is recommended:
MCU-AN-300033-E-V15 - 12 - © Fujitsu Microelectronics Europe GmbH