3registers format, 1 i/o port address – ADLINK ACL-6126 User Manual

Page 23

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Registers Format 17

3

Registers Format

3.1 I/O Port Address

The ACL-6126 requires 16 consecutive addresses in the PC‘s I/O
address space. The starting address (Base) is selected on the DIP
switch SW1 ( see Section 2.5). The following table (Table 4.1) shows
the location of each register and its description.

Location Mode

Description

Base + 0

Write

D/A #1 high byte data

Base + 1

Write

D/A #1 low byte data

Base + 2

Write

D/A #2 high byte data

Base + 3

Write

D/A #2 low byte data

Base + 4

Write

D/A #3 high byte data

Base + 5

Write

D/A #3 low byte data

Base + 6

Write

D/A #4 high byte data

Base + 7

Write

D/A #4 low byte data

Base + 8

Write

D/A #5 high byte data

Base + 9

Write

D/A #5 low byte data

Base + 10

Write

D/A #6 high byte data

Base + 11

Write

D/A #6 low byte data

Base + 12

Write

D/O Bit 8-15

Base + 13

Write

D/O Bit 0-7

Base + 14

Read

D/I Bit 8-15

Base + 15

Read

D/I Bit 0-7

Table 4.1 Registers Map

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