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Chapter3 signal descriptions, Chapter 3, signal descriptions, Chapter 3 – Avago Technologies LSI53C895A User Manual

Page 89: Signal descriptions, Chapter 3, “signal descriptions, Chapter 3 signal descriptions

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LSI53C895A PCI to Ultra2 SCSI Controller

3-1

Chapter 3
Signal Descriptions

This chapter presents the LSI53C895A pin configuration and signal
definitions using tables and illustrations. The LSI53C895A comes in a
208 PQFP and a 272 BGA package. Definitions in the signal description
tables are for both the 208 PQFP and the 272 BGA. This chapter
contains the following sections:

Section 3.1, “LSI53C895A 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, “Flash ROM and Memory Interface Signals”

Section 3.6, “Test Interface Signals”

Section 3.7, “Power and Ground Signals”

Section 3.8, “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.