A.2 Operational Environment

The LSIU40HVD is designed for use in PCI computer systems with an ISA/EISA bracket type. The LSI Logic SDMS software operates the board, but the design of the board does not prevent the use of other software.

A.2.1 The PCI Interface

The PCI interface operates as a 32-bit DMA bus master. The connection is made through the edge connector J1, which provides connections on both the front and back of the board. The signal definitions and pin numbers conform to the PCI Local Bus Specification Revision 2.1 standard. The following tables show the signal assignments.

Note: The + 3.3 V pins are tied together and decoupled with high frequency bypass capacitors to ground. No current from these 3.3 V pins is used on the board. The PCI portion of the LSI53C876 chip is powered from the 3 V/5 V pins.

A-4

Technical Specifications