HD404318 Datasheet, PDF (53/68 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
HD404318 Series
AMR20
0
1
AMR21
0
1
Conversion Time
34 t_cyc
67 t_cyc
R4/AN₄–AN₇ Pin Selection
R4
AN₄–AN₇
Figure 42 A/D Mode Register (AMR2)
A/D channel register (ACR: $016)
Bit
Initial value
Read/Write
Bit name
3
—
—
Not used
2
0
W
ACR2
1
0
W
ACR1
0
0
W
ACR0
ACR2 ACR1 ACR0
0
0
0
1
1
0
1
1
0
0
1
1
0
1
Analog Input Selection
AN₀
AN₁
AN₂
AN₃
AN₄
AN₅
AN₆
AN₇
Figure 43 A/D Channel Register (ACR)
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