Samsung S3C8275X - Manual (Page 229)

CLOCK CIRCUIT S3C8275X/F8275X/C8278X/F8278X/C8274X/F8274X
7-8
STOP Control Register (STPCON)
FBH, Set 1, Bank 0, R/W
.7 .6 .5 .4 .3 .2 .1 .0 MSB LSB
STOP control bits:
Other values = Disable STOP instruction
10100101 = Enable STOP instruction
NOTE: Before execute the STOP instruction, set this STPCON register as "10100101B".
Otherwise the STOP instuction will not execute as well as reset will be generated.
Figure 7-11. STOP Control Register (STPCON)