HD404459 Datasheet, PDF (96/122 Pages) Renesas Technology Corp – 4-bit HMCS400-series microcomputers

HD404459 Series
Miscellaneous Register (MIS: $00C): This register has the following functions (figure 77).
• R4₃/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
MIS1
0
1
MIS2
0
1
MIS3
0
1
MIS0
0
1
0
1
t_RC
0.12207 ms
7.8125 ms
62.5 ms
Not used
R4₃/SO PMOS on/off selection
On
Off
Pull-up MOS on/off selection
Off
On
Figure 77 Miscellaneous Register (MIS)
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