Does NRF51822 require external pulldown for SWCLK?

[qwerqwerfg]

Hi, I came across a forum post that NRF51 had an issue with noises in SWCLK signal. 

For the design, do I need to attach an external pull down resistor in design? If so, what are some recommended resistances?

[Jared]

Hi,

Yes, 1k ohm as shown in reference design:

regards

Jared