HD404054 Datasheet, PDF (77/103 Pages) Hitachi Semiconductor – HMCS400-series microcomputers designed to increase program productivity with large-capacity memory

HD404054 Series/HD404094 Series
Miscellaneous Register (MIS: $00C): This register has the following functions (figure 59).
• R4₃/SO₁ pin PMOS control
Miscellaneous register (MIS: $00C) is a 2-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
—
—
—
—
Not used Not used
MIS2
0
1
R4₃/SO₁ PMOS on/off selection
On
Off
MIS3
0
1
Pull-up MOS on/off selection
Off
On
Figure 59 Miscellaneous Register (MIS)
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