HMS87C5216 Datasheet, PDF (75/76 Pages) List of Unclassifed Manufacturers – CMOS SINGLE-CHIP 8-BIT MICROCONTROLLER FOR UR(Universal Remocon) & WIRELESS KEYBOARD

HMS87C5216
any of pins AN0 to AN3 selected, be sure not to execute a PORT
input instruction while conversion is in progress, as this may re-
duce the conversion resolution.
Also, if digital pulses are applied to a pin adjacent to the pin in the
process of A/D conversion, the expected A/D conversion value
may not be obtainable due to coupling noise. Therefore, avoid ap-
plying pulses to pins adjacent to the pin undergoing A/D conver-
sion.
SEP. 2004 Ver 1.01