Panasonic F77G, MN101C77C „A/D Converter Control Register 0 ANCTR0, ANCTR0 ANSH1, Anlade

Models: F77G MN101C77C

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Chapter 15 A/D Converter

15-2-2 Control Registers

„A/D Converter Control Register 0 (ANCTR0)

ANCTR0

7

6

5

4

3

2

1

0

ANSH1

ANSH0

ANCK1

ANCK0

ANLADE

-

-

-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(At reset : 0 0 0 0 - - - )

ANLADE

A/D ladder resistance control

 

 

 

 

0

A/D ladder resistance OFF

 

 

 

 

1

A/D ladder resistance ON

 

 

 

 

 

 

 

 

 

ANCK1

 

ANCK0

A/D conversion clock (ftad=1/TAD)

 

 

 

 

 

0

 

0

fs/2

 

 

 

 

 

 

1

fs/4

 

 

 

 

 

 

 

 

 

1

 

0

fs/8

 

 

1

fx 2

 

 

 

 

 

 

 

*as 800 ns < TAD 15.26 s

ANSH1

 

ANSH0

Sample and hold time

 

 

 

 

 

0

 

0

TAD

2

 

 

 

 

 

1

TAD

6

 

 

 

 

 

 

 

1

 

0

TAD

18

 

 

 

 

 

1

Reserved

 

 

 

 

 

 

 

*Sampling and holding time is decided by the input impedance at analog input.

TAD means the cycle for A/D conversion clock.

Figure 15-2-1 A/D Converter Control Register 0 (ANCTR0 : x'03FB0', R/W)

Control Registers XV - 5

Page 479
Image 479
Panasonic F77G, MN101C77C user manual „A/D Converter Control Register 0 ANCTR0, ANCTR0 ANSH1, Anlade