this is the problem.
I put in STOP1 mode HCS08. If I put it debugging (InDart tool) is all ok; program go to STOP instruction and say that MCU is in STOP mode.
If I run the same program without debugger, after STOP instruction, MNCU reset itself and begin again ....
Watchdog (COP) is disable
RTI is disable
STOPE is enable.
LVD is disable in stop mode
Reset pin is disasble and external pull up tu VDD.
At startup I read SRS and SPMSC2 PDF bit.
I read, that MCU exit from a STOP1 as expected and the RESET was a power on reset !!!!!
Please, help me: I don't know the reason of this Power on reset after STOP1.