11 handling pci controller registers – ADLINK PCI-7260 User Manual

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Register Format

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3.11 Handling PCI Controller Registers

The PCI bus controller adopted in PCI-7260 is PCI-9030 which is
provided by PLX technology Inc. When users attempt to handle
low-level programming, some registers in PCI-9030 should be
noticed. The interrupt control register(INTCSR; 0x4Ch) of PCI-
9030 takes charge of all interrupt information from local bus to PCI
bus. When users want to develop their own interrupt function
driver, both interrupt registers in PCI-9030 and in PCI-7260 have
to work together. For more detailed information about the interrupt
control register in PCI-9030, please refer to the PCI-9030
databook.

In PCI-7260 software funciton library, we provide simple and easy-
to-use functions to handle the procedure of interrupt. Using these
functions, users don’t need to care about the interrupt register in
PCI controller. We suggest users use these functions instead of
developing interrupt functions by themselves. For more informa-
tion about PCI-7260 funciton library, please refer to Chapter 5.

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