HD404369 Datasheet, PDF (54/117 Pages) Hitachi Semiconductor – 4-bit HMCS400-Series microcomputer

HD404369 Series
A/D mode register 2 (AMR2: $01A)
Bit
Initial value
Read/Write
Bit name
3
2
—
0
—
W
Not used AMR22
1
0
W
AMR21
0
0
W
AMR20
AMR22
0
1
R5/AN₈–AN₁₁ Pin Selection
R5
AN₈–AN₁₁
AMR20
0
1
AMR21
0
1
Conversion Time
34 t_cyc
67 t_cyc
R4/AN₄–AN₇ Pin Selection
R4
AN₄–AN₇
Figure 33 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
W
MIS1
0
0
W
MIS0
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
MIS1
MIS0
t_RC selection.
Refer to figure 15 in the
operation modes section.
Figure 34 Miscellaneous Register (MIS)
52