6.5.1.4 XTAL2
The XTAL2 pin on the AVR device. If the CLOCK switch is set to the INT position, this pin can be used for an external crystal with the XTAL1 pin.
The XTAL2 pin on the AVR device. If the CLOCK switch is set to the INT position, this pin can be used for an external crystal with the XTAL1 pin.
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