Service manual

Chapter 4

<REFERENCE>(XRP) Scalar Processor

This chapter contains the following sections:

• <REFERENCE>(XRP) Physical Description and Speciﬁcations

• <REFERENCE>(XRP) Conﬁguration Rules

• <REFERENCE>(XRP) Functional Description

• Boot Processor

• Power-Up Sequence

• <REFERENCE>(XRP) Self-Test Results: Console Display

• <REFERENCE>(XRP) Self-Test Results: Module LEDs

• <REFERENCE>(XRP) Self-Test Results: XGPR Register

• ROM-Based Diagnostics

<REFERENCE>(XRP) Self-Test — RBD 0

CPU/Memory Interaction Tests — RBD 1

• VAX/DS Diagnostics

• Machine Checks

• Console Commands

• <REFERENCE>(XRP) Handling Procedures

• CPU Replacement in Single CPU System

Using the RESTORE Command

Using SET commands

• CPU Replacement in Multiple CPU Systems

• How to Add a New Processor

• Patching the EEPROM with EVUCA

• <REFERENCE>(XRP) Registers

<REFERENCE>(XRP) Scalar Processor 4–1