User`s manual

CP-132 Series Technical Reference
A-2
PCI
The 32-bit Industio CP-132 Series board complies with the PCI specifications 2.1. Hardware configuration for
IRQ and I/O addresses is automatically assigned by the PCI BIOS. Hence, you must first plug the board
before installing the software driver.
Unlike ISA slots, different PCI slots in the same PC may have different bus numbers and device numbers with
respect to the PCI specifications. The same PCI board will have different system configurations if switching to
a different PCI slot, which may be called slot-sensitive or slot-dependent. This may also apply to PCI slots
in PC with different motherboard, which may use different device number sets. For example, some use 17,
18, 19, and 20 for identifying the respective PCI slots but some use 11, 12, 13 and 14.
Due to the slot-dependency, it is necessary to re-configure the software driver once the board is plugged
in different PCI slots.
Up to 4 Industio CP-132 Series boards are allowed in one system. When installing more than one board, please
remember the order of boards for distinguishing the installed boards.
UART 16C550C
The UART chip, 16C550C, is an intelligent asynchronous controller capable of supporting one full duplex
channel that simultaneously transfers data at 921.6 Kbps. To increase the overall data throughput, special
features such as on-chip FIFO and on- chip hardware flow control are used to reduce the number of interrupts
to the onboard CPU and to prevent any loss of valuable data.