m5m51016btp Renesas Electronics Corporation., m5m51016btp Datasheet - Page 242

• Manufacturer Part Number: m5m51016btp
• Description: Renesas 16-bit Single-chip Microcomputer M16c Family / M16c/20 Series
• Manufacturer: Renesas Electronics Corporation.

M30245 Group
Rev.2.00 Oct 16, 2006
REJ09B0340-0200
Table 2.9.10. The comparison voltage in 8-bit mode compared to 8-bit A/D converter
Figure 2.9.19. The level conversion characteristics of 8-bit mode and 8-bit A/D converter
2.9.10 Method of A/D Conversion (8-bit mode)
Comparison
voltage
Vref
Optimal conversion characteristics of 8-bit A/D converter (V
Optimal conversion characteristics in 8-bit mode (V
(Result of A/D conversion)
(1) In 8-bit mode, 8 higher-order bits of the 10-bit successive comparison register becomes A/D
(Result of A/D conversion)
conversion result. Hence, if compared to a result obtained by using an 8-bit A/D converter,
the voltage compared is different by 3 V
2.9.10), and differences in stepping points of output codes occur as shown in Figure 2.9.19.
n = 1 to 255
Note: Differences in stepping points of output code for analog input voltage.
mode
8-bit
02
01
00
page 233 of 354
n = 0
Output code
Output code
10-bit
mode
09
08
07
06
05
04
03
02
01
00
02
01
00
V
2
REF
8
10
x
8-bit mode
17.5
n
(Note)
–
0
V
2
REF
10
30
REF
37.5
x 0.5
/2048 (see what are underscored in Table
Analog input voltage (mV)
Analog input voltage (mV)
REF
= 5.12 V)
10bit-mode
8bit-mode
V
2
REF
REF
8
8-bit A/D converter
= 5.12 V)
x
n
–
0
V
REF
2
2. A/D Converter
8
x 0.5