ADLINK Technology NuDAQ 723 Series, User Manual, Page: 21 / 36

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Registers & Operation Theorem
3.2 I/O Registers Format
The PCI-7230/cPCI-7230 requires one 32-bit address in the PC I/O
address space. Table 3.1 shows the I/O address of each register with
respect to the base address.
Address Write Read
Base (0 - 1 ) Isolated DO Isolated DI
Table 3.1. I/O Address Map of PCI-7230 and cPCI-7230
The PCI-7233 requires one 32-bit address in the PC I/O address space.
Table 3.2 shows the address.
Address Write Read
Base (0 - 3 ) -- Isolated DI
Table 3.2. I/O Address Map of PCI-7233/PCI-7233HS
The PCI-7234 requires one 32-bit address in the PC I/O address space.
Table 3.3 shows the address.
Address Write Read
Base (0 - 3 ) Isolated DO --
Table 3.3. I/O Address Map of PCI-7234
Cautions:
1. All the above I/O ports are 32-bit width
2. 8-bit or 16-bit I/O access is NOT allowed.
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