Datasheet

PIC16F631/677/685/687/689/690
DS40001262F-page 108  2005-2015 Microchip Technology Inc.
9.1.6 RESULT FORMATTING
The 10-bit A/D conversion result can be supplied in two
formats, left justified or right justified. The ADFM bit of
the ADCON0 register controls the output format.
Figure 9-3 shows the two output formats.
FIGURE 9-3: 10-BIT A/D CONVERSION RESULT FORMAT
ADRESH ADRESL
(ADFM = 0)MSB LSB
bit 7 bit 0 bit 7 bit 0
10-bit A/D Result Unimplemented: Read as ‘0’
(ADFM = 1)
MSB LSB
bit 7 bit 0 bit 7 bit 0
Unimplemented: Read as ‘0’ 10-bit A/D Result