Chapter 3

Signal Descriptions

This chapter presents the LSI53C875A pin configuration and signal definitions using tables and illustrations. This chapter contains the following sections:

Section 3.1, “LSI53C875A Functional Signal Grouping”

Section 3.2, “Signal Descriptions”

Section 3.3, “PCI Bus Interface Signals”

Section 3.4, “SCSI Bus Interface Signals”

Section 3.5, “GPIO Signals”

Section 3.6, “ROM Flash and Memory Interface Signals”

Section 3.7, “Test Interface Signals”

Section 3.8, “Power and Ground Signals”

Section 3.9, “MAD Bus Programming”

A slash (/) at the end of a signal name indicates that the active state occurs when the signal is at a LOW voltage. When the slash is absent, the signal is active at a HIGH voltage.

LSI53C875A PCI to Ultra SCSI Controller

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LSI 53C875A technical manual Chapter Signal Descriptions