HD404669 Datasheet, PDF (90/142 Pages) Hitachi Semiconductor – Low-Voltage AS Microcomputers with On-Chip DTMF Generation Circuit

HD404669 Series
Miscellaneous Register (MIS: $00C): This register has the following function (figure 68).
• R4₃/SO₁ pin PMOS control
Miscellaneous register (MIS: $00C) is a 4-bit write-only register and is reset to $0 by an MCU reset or in
stop mode.
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/Pull-down MOS control
Off
On
MIS1
0
R4₃/SO₁PMOS control
1
On
Off
MIS0
0
1
0
1
t_RC
0.12207 ms
0.24414 ms*
7.8125 ms
31.25 ms
Not used
Note: * The value is applied only when direct transfer operation is used.
Figure 68 Miscellaneous Register (MIS)
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