Programming – ADLINK ACL-7120A/6 User Manual
Page 31
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Programming
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4
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
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