My sign in returns:

AMSAT-NA PacSat Console
Flight Software X0.1a (built on Jun 10 2023 at 08:43:48)
Compiled *RELEASE*
**X, E, U, or DEBUG Version: Not configured for flight**
Watchdog NOT Enabled
Using FreeRTOS withOUT premption enabled;
Free heap size is 55944
Flash memory size 1Mb+256Kb; MRAM size is 0x124, structure size is 0x124


Free heap size after tasks launched: 19056
*** NO RTC: SET THE UNIX TIME BEFORE UPLOADING ANY TEST FILES ***
Starting RX with AX5043Device 0, vhf=1 9600bps=0, freq=145835000
Starting TX with AX5043Device 1, vhf=0 9600bps=0, freq=435760000
Pacsat>

What does this line mean?
Flash memory size 1Mb+256Kb; MRAM size is 0x124, structure size is 0x124