HD404356 Datasheet, PDF (41/100 Pages) Hitachi Semiconductor – 4-bit HMCS400-Series microcomputer

A/D mode register 2 (AMR2: $01A)
Bit
Initial value
Read/Write
Bit name
3
2
1
0
—
—
0
0
—
—
W
W
Not used Not used AMR21 AMR20
HD404358 Series
AMR20
0
1
AMR21
0
1
Conversion Time
34 t_cyc
67 t_cyc
R4/AN₄–AN₇ Pin Selection
R4
AN₄–AN₇
Figure 26 A/D Mode Register 2 (AMR2)
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
MIS3
0
1
Pull-Up MOS
On/Off Selection
Pull-up MOS off
Pull-up MOS on
(refer to table 21)
MIS2
0
1
CMOS Buffer
On/Off Selection
for Pin R0₂/SO
PMOS active
PMOS off
Figure 27 Miscellaneous Register (MIS)
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