Объявите DEAD_TIME_0 DEAD_TIME_1 и ON_TIME_0 ON_TIME_1
ldi r16,(1 << POEN0A)|(1 << POEN0B)
sts PSOC0,r16
ldi r25,HIGH(DEAD_TIME_0)
ldi r24,LOW(DEAD_TIME_0)
sts OCR0SAH,r25
sts OCR0SAL,r24
ldi r25,HIGH(ON_TIME_0)
ldi r24,LOW(ON_TIME_0)
sts OCR0RAH,r25
sts OCR0RAL,r24
ldi r25,HIGH(DEAD_TIME_1)
ldi r24,LOW(DEAD_TIME_1)
sts OCR0SBH,r25
sts OCR0SBL,r24
ldi r25,HIGH(ON_TIME_1)
ldi r24,LOW(ON_TIME_1)
sts OCR0RBH,r25
sts OCR0RBL,r24
ldi r16,(1<sts PCNF0,r16clr r16
sts PFRC0B,r16
ldi r16,(1 << PRUN0)
sts PCTL0,r16