HD404314H 查看數據表（PDF） - Hitachi -> Renesas Electronics

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HD404314H

4-bit HMCS400-series microcomputer

Hitachi -> Renesas Electronics 

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 tcyc

67 tcyc

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)

51

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