Introduction
BUF-PCI(PC), BUF-PCI(98)
4
Restrictions
The expansion slot this product adds to the I/O expansion unit is not
fully compatible with the expansion slot in the PC. For this reason, a
board that can be mounted and used in the expansion unit is subject to
some restrictions.
A board that operates only with I/O accessing (I/O instructions) can be
mounted and used in the expansion unit. A board that requires
specialized operations might not function properly even if it operates
with I/O accessing. Before using therefore, be sure to verify the
specifications of the board you will be mounting in the I/O expansion
unit.
The following boards cannot be used.
- A board that uses specific I/O port addresses (a board that does not
allow its I/O port addresses to be reset, such as a PnP board)
- A board that uses memory accessing (a memory expansion board or a
board that uses an extended ROM area)
- A board that uses DMA
- A board that outputs control signals to the PC, such as an external
CPU board
- A board that is used to add another I/O expansion unit
- A board specifically mentioned that it cannot be used in the manual
of a PC which uses an I/O expansion unit
- A board that requires an I/O wait of more than one microsecond
- A board that uses I/O port address lower 8 bits F8h-FFh
