Freescale Semiconductor MPC850 User Manual page 10

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6.1 Exceptions........................................................................................................... 6-2
6.1.1 Exception Ordering......................................................................................... 6-3
6.1.2 PowerPC-Defined Exceptions ........................................................................ 6-4
6.1.2.1 System Reset Interrupt (0x00100) .............................................................. 6-5
6.1.2.2 Machine Check Interrupt (0x00200) .......................................................... 6-5
6.1.2.3 DSI Exception (0x00300) ........................................................................... 6-6
6.1.2.4 ISI Exception (0x00400)............................................................................. 6-6
6.1.2.5 External Interrupt Exception (0x00500) ..................................................... 6-6
6.1.2.6 Alignment Exception (0x00600) ................................................................ 6-7
6.1.2.6.1
6.1.2.7 Program Exception (0x00700).................................................................... 6-9
6.1.2.8 Decrementer Exception (0x00900)........................................................... 6-10
6.1.2.9 System Call Exception (0x00C00) ........................................................... 6-10
6.1.2.10 Trace Exception (0x00D00) ..................................................................... 6-11
6.1.2.11 Floating-Point Assist Exception ............................................................... 6-12
6.1.3 Implementation-Specific Exceptions............................................................ 6-12
6.1.3.1 Software Emulation Exception (0x01000) ............................................... 6-12
6.1.3.2 Instruction TLB Miss Exception (0x01100)............................................. 6-12
6.1.3.3 Data TLB Miss Exception (0x01200)....................................................... 6-13
6.1.3.4 Instruction TLB Error Exception (0x01300) ............................................ 6-13
6.1.3.5 Data TLB Error Exception (0x014000) .................................................... 6-14
6.1.3.6 Debug Exceptions (0x01C00-0x01F00) .................................................. 6-15
6.1.4 Implementing the Precise Exception Model................................................. 6-16
6.1.5 Recoverability after an Exception................................................................. 6-17
6.1.6 Exception Latency ........................................................................................ 6-18
6.1.7 Partially Completed Instructions .................................................................. 6-20
7.1 Instruction Cache Organization .......................................................................... 7-2
7.2 Data Cache Organization .................................................................................... 7-4
7.3 Cache Control Registers ..................................................................................... 7-6
7.3.1 Instruction Cache Control Registers ............................................................... 7-6
7.3.1.1 Reading Data and Tags in the Instruction Cache........................................ 7-8
7.3.1.2 IC_CST Commands.................................................................................... 7-9
7.3.1.2.1
7.3.1.2.2
7.3.1.2.3
CONTENTS
Chapter 6
Exceptions
Integer Alignment Exceptions ................................................................ 6-8
Chapter 7
Instruction and Data Caches
Instruction Cache Enable/Disable Commands ....................................... 7-9
Instruction Cache Load & Lock Cache Block Command ...................... 7-9
Instruction Cache Unlock Cache Block Command .............................. 7-10
MPC850 Family User's Manual
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