SONIX SN32F264 - INTERNAL PULL-UP;DOWN RESITIORS on SWD PINS

SN32F260 Series
32-Bit Cortex-M0 Micro-Controller
SONiX TECHNOLOGY CO., LTD Page 125 Version 1.5
12.4.3 INTERNAL PULL-UP/DOWN RESITIORS on SWD PINS
To avoid any uncontrolled IO levels, the device embeds internal pull-up and pull-down resistor on the SWD input pins:
 SWDIO/JTMS: Internal pull-up
 SWCLK/JTCK: Internal pull-down
Once a SWD function is disabled by SW, the GPIO controller takes control again.