13-2
MPC8240 Integrated Processor User’s Manual
Overview
13.1.1 Error Handling Block Diagram
Figure 13-1 provides the internal error management block diagram.
Figure 13-1. Internal Error Management Block Diagram
13.1.2 Priority of Externally Generated Errors and
Exceptions
Many of the errors detected in the MPC8240 cause exceptions to be taken by the processor
core. Table 13-1 describes the relative error priorities.The processor exception generated by
each of these conditions is described in Section 5.5, “Exception Model.”
Table 13-1. MPC8240 Error Priorities
Priority
Exception
Cause
0
Hard reset
Hard reset (required on power-on); HRST_CRTL and HRST_CPU asserted (must
always be asserted together)
1
Machine check
Processor transaction error or Flash write error
2
Machine check
PCI address parity error (SERR) or PCI data parity error (PERR) when the
MPC8240 is acting as the PCI target
3
Machine check
Memory select error, memory data read parity error, memory refresh overflow, or
ECC error
SERR
PERR
MCP
NMI
PCI Interface
Peripheral Logic Interface
Error
HRST_CRTL
Processor Core
SMI
HRST_CPU
Memory
Parity/ECC
Check
Handling
Message
Unit
Summary of Contents for MPC8240
Page 1: ...MPC8240UM D Rev 1 1 2001 MPC8240 Integrated Processor User s Manual ...
Page 38: ...xviii MPC8240 Integrated Processor User s Manual TABLES Table Number Title Page Number ...
Page 48: ...xlviii MPC8240 Integrated Processor User s Manual Acronyms and Abbreviations ...
Page 312: ...6 94 MPC8240 Integrated Processor User s Manual ROM Flash Interface Operation ...
Page 348: ...7 36 MPC8240 Integrated Processor User s Manual PCI Host and Agent Modes ...
Page 372: ...8 24 MPC8240 Integrated Processor User s Manual DMA Register Descriptions ...
Page 394: ...9 22 MPC8240 Integrated Processor User s Manual I2O Interface ...
Page 412: ...10 18 MPC8240 Integrated Processor User s Manual Programming Guidelines ...
Page 454: ...12 14 MPC8240 Integrated Processor User s Manual Internal Arbitration ...
Page 466: ...13 12 MPC8240 Integrated Processor User s Manual Exception Latencies ...
Page 516: ...16 14 Watchpoint Trigger Applications ...
Page 538: ...B 16 MPC8240 Integrated Processor User s Manual Setting the Endian Mode of Operation ...
Page 546: ...C 8 MPC8240 Integrated Processor User s Manual ...
Page 640: ...INDEX Index 16 MPC8240 Integrated Processor User s Manual ...