kernelconfig_penguin
CONFIG_DEBUG_NSPIRE_CX_UART is not available for the default architecture x86.
Result is shown for architecture arm

Kernel low-level debugging via TI-NSPIRE PL011 UART

configname: CONFIG_DEBUG_NSPIRE_CX_UART

Kernel low-level debugging port
└─> Kernel low-level debugging via TI-NSPIRE PL011 UART

Say Y here if you want kernel low-level debugging support
on TI-NSPIRE CX models.