HD404829R Datasheet, PDF (95/149 Pages) Renesas Technology Corp – AS Microcomputer Incorporating a LCD controller/Driver Circuit

HD404829R Series
Miscellaneous Register (MIS: $00C): This register has the following function (figure 80).
• R2₃/SO pin PMOS control
Miscellaneous register (MIS: $00C) is a 4-bit write-only register and is reset to $0 by MCU reset.
Miscellaneous register (MIS: $00C)
Bit
Initial value
Read/Write
Bit name
3
0
W
MIS3
2
0
W
MIS2
1
0
W
MIS1
0
0
W
MIS0
MIS3
0
1
MIS2
0
1
Pull-up MOS on/off selection
Off
On
MIS1
0
R2₃/SO PMOS on/off selection
1
On
Off
MIS0
0
1
0
1
t_RC
0.12207 ms
0.24414 ms
7.8125 ms
31.25 ms
Not used
Figure 80 Miscellaneous Register (MIS)
A/D Converter
The MCU has a built-in A/D converter that uses a successive approximation method with a resistor ladder.
It can measure four analog inputs with 8-bit resolution. As shown in the block diagram of figure 81, the
A/D converter has a 4-bit A/D mode register, a 1-bit A/D start flag, and a 4-bit plus 4-bit A/D data register.
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