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Programming • 25

Programming

4.1 I/O Registers Format

The ACL-7120A occupies 16 consecutive addresses in the PC I/O address

space. Table 4.1 shows the I/O Map

Address Write Read

Base + 0 DO 0-7 DI 0-7

Base + 1 DO 8-15 DI 8-15

Base + 2 DO 16-23 DI 16-23

Base + 3 DO 24-31 DI 24-31

Base + 4 LSB OR MSB OF COUNTER 0

Base + 5 LSB OR MSB OF COUNTER 1

Base + 6 LSB OR MSB OF COUNTER 2

Base + 7 CONTROL BYTE CW0

Base + 8 LSB OR MSB OF COUNTER 3

Base + 9 LSB OR MSB OF COUNTER 4

Base + 10 LSB OR MSB OF COUNTER 5

Base + 11 CONTROL BYTE CW1

DO -- Digital Output

DI -- Digital Input

LSB -- Least Significant Byte

MSB -- Most Significant Byte

Table 4.1

1 2 ... 26 27 28 29 30 31 32 33 34 35 36 ... 39 40

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ADLINK Technology ACL -6128 Guía de usuario Pagina 31