2 d/a data register – ADLINK ACL-6126 User Manual

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18 Registers Format

3.2 D/A Data Register

The D/A converter expects digital input data to be in binary right-
justified format, as shown in Figure 3.1.


X X X X D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0




The base address from Base+0 to Base+11 are used for D/A
conversion. The analog output channels and its corresponding registers
are specified by table 4.2, and the details is described as table 4.3 and
4.4.

CH. No.

#1

#2

#3

#4

#5

#6

High byte Base+0

Base+2 Base+4 Base+6 Base+8 Base+10

Low byte Base+1

Base+3

Base+5 Base+7 Base+9 Base+11

Table 4.2

Data Format :
D/A High byte data :
(Base +0, +2, +4, +6, +8, +10)

Bit

7

6

5

4

3

2

1

0

X X X X

D11

D10

D9

D8

Table 4.3

D/A Low byte data : (Base +1, +3, +5, +7, +9, +11)

Bit

7

6

5

4

3

2

1

0

D7 D6 D5 D4

D3 D2

D1 D0

Table 4.4

High Byte

Low

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