LPC54608 pins pull up on reset

[F_Vaquero]

Most of the pins of the LPC54608 are with pull up on reset state. May I change this behaviour? I've seen that other microcontrollers have a non volatile memory (FAIM) to set up whether we want pull up, pull down or high-z at pins on reset.

[Alice_Yang · Accepted solution]

Hello F_Vaquero,

No, pins will be the reset states as Data sheet -> Table 4  Pin description.

[F_Vaquero]

Thank you for your confirmation. Do you know why most of the pins are pull-up? This complicates a bit hardware design and for many years the "standard" reset state of pins has been high-Z.

[frank_m]

I think not.

Check MCU user manual (UM10912.pdf), all peripheral register description sections describe a fixed reset value.