Цитата
lds ZH,ADCH
lds ZL,ADCL
;здесь отсчёт уже сделан
When ADCL is read, the ADC Data Register is not updated until ADCH is read. Consequently, if
the result is left adjusted and no more than 8-bit precision is required, it is sufficient to read
ADCH. Otherwise, ADCL must be read first, then ADCH.