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Register Structure & Connection
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Register Structure & Connection
3.1 I/O Registers Format
The PCI-7230 requires 2 consecutive addresses (32-bit) 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 - 3 )
Isolated DO
Isolated DI
Table 3.1. I/O Address Map of PCI-7230
DO
-- Digital Output
DI
-- Digital Input
Caution :
1.
I/O prot is 32-bit width (PCI is 32-bit data transfer)
2.
8-bit or 16-bit I/O access is not allowed.
Содержание PCI-7230
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