SH7727 Datasheet, PDF (949/1109 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH RISC engine Family/SH7700 Series

Section 28 A/D Converter
28.7.3 Access Size and Read Data
Table 28.6 shows the relationship between access size and read data. Note the read data obtained
with different access sizes, bus widths, and endian modes.
The case is shown here in which H'3FF is obtained when AVCC is input as an analog input. FF is
the data containing the upper 8 bits of the conversion result, and C0 is the data containing the
lower 2 bits.
AV_CC
100 Ω
SuperH microprocessor
AN2 to AN7
*
0.1 µF
AV_SS
Note: *
10 µF
0.01 µF
Figure 28.9 Example of Analog Input Protection Circuit
AN2 to AN7
1.0 kΩ
20 pF
1 MΩ
Figure 28.10 Analog Input Pin Equivalent Circuit
Rev. 5.00 Dec 12, 2005 page 877 of 1034
REJ09B0254-0500