HD404654 Datasheet, PDF (79/111 Pages) Hitachi Semiconductor – 4-Bit Single-Chip Microcomputer

HD404654 Series
Miscellaneous Register (MIS: $00C): This register has the following functions (figure 62).
• R4₃/SO₁ pin PMOS control
Miscellaneous register 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
—
—
—
—
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 62 Miscellaneous Register (MIS)
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