M16C User Manual.pdf

A-D ConverterMitsubishi microcomputersM16C / 62 GroupSINGLE-CHIP 16-BIT CMOS MICROCOMPUTERA-D control register 2 (Note)b7 b6 b5 b4 b3 b2 b1 b00 0 0Symbol Address When resetADCON2 03D416 0000XXX02Bit symbol Bit name Function R WSMPA-D conversion methodselect bit0 : Without sample and hold1 : With sample and holdReserved bit Always set to “0”Nothing is assigned.In an attempt to write to these bits, write “0”. The value, if read, turns out tobe “0”.Note: If the A-D control register is rewritten during A-D conversion, the conversionresult is indeterminate. A-D register i Symbol Address When resetADi(i=0 to 7) 03C016 to 03CF16 Indeterminate(b15)(b8)b7 b0 b7b0FunctionEight low-order bits of A-D conversion result• During 10-bit modeTwo high-order bits of A-D conversion result• During 8-bit modeWhen read, the content is indeterminateR WNothing is assigned.In an attempt to write to these bits, write “0”. The value, ifread, turns out to be “0”.Figure 1.20.3. A-D converter-related registers (2)156