MOTOROLA
Contents
vii
CONTENTS
Paragraph
Number
Title
Page
Number
2.5.1
PowerPC Exception Model ............................................................................2-22
2.5.2
MPC8260 Implementation-Specific Exception Model ..................................2-23
2.5.3
Exception Priorities ........................................................................................2-26
2.6
Memory Management ........................................................................................2-26
2.6.1
PowerPC MMU Model ..................................................................................2-27
2.6.2
MPC8260 Implementation-Specific MMU Features .....................................2-28
2.7
Instruction Timing..............................................................................................2-29
2.8
Differences between the MPC8260Õs Core and the PowerPC 603e
Microprocessor...............................................................................................2-30
Chapter 3
Memory Map
Chapter 4
System Interface Unit (SIU)
4.1
System Configuration and Protection ..................................................................4-2
4.1.1
Bus Monitor .....................................................................................................4-3
4.1.2
Timers Clock ....................................................................................................4-4
4.1.3
Time Counter (TMCNT)..................................................................................4-4
4.1.4
Periodic Interrupt Timer (PIT) .........................................................................4-5
4.1.5
Software Watchdog Timer ...............................................................................4-6
4.2
Interrupt Controller ..............................................................................................4-7
4.2.1
Interrupt Configuration ....................................................................................4-8
4.2.2
Interrupt Source Priorities ................................................................................4-9
4.2.2.1
SCC, FCC, and MCC Relative Priority .....................................................4-12
4.2.2.2
PIT, TMCNT, and IRQ Relative Priority ..................................................4-12
4.2.2.3
Highest Priority Interrupt ...........................................................................4-13
4.2.3
Masking Interrupt Sources .............................................................................4-13
4.2.4
Interrupt Vector Generation and Calculation .................................................4-14
4.2.4.1
Port C External Interrupts ..........................................................................4-16
4.3
Programming Model ..........................................................................................4-17
4.3.1
Interrupt Controller Registers ........................................................................4-17
4.3.1.1
SIU Interrupt Configuration Register (SICR) ............................................4-17
4.3.1.2
SIU Interrupt Priority Register (SIPRR) ....................................................4-18
4.3.1.3
CPM Interrupt Priority Registers (SCPRR_H and SCPRR_L) .................4-19
4.3.1.4
SIU Interrupt Pending Registers (SIPNR_H and SIPNR_L).....................4-21
4.3.1.5
SIU Interrupt Mask Registers (SIMR_H and SIMR_L) ............................4-22
4.3.1.6
SIU Interrupt Vector Register (SIVEC).....................................................4-23
4.3.1.7
SIU External Interrupt Control Register (SIEXR) .....................................4-24
4.3.2
System Configuration and Protection Registers ............................................4-25
4.3.2.1
Bus Configuration Register (BCR) ...........................................................4-25
Содержание MPC8260 PowerQUICC II
Страница 1: ...MPC8260UM D 4 1999 Rev 0 MPC8260 PowerQUICC II UserÕs Manual ª ª ...
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Страница 88: ...1 18 MPC8260 PowerQUICC II UserÕs Manual MOTOROLA Part I Overview ...
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Страница 138: ...Part II iv MPC8260 PowerQUICC II UserÕs Manual MOTOROLA Part II Configuration and Reset ...
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Страница 202: ...Part III vi MPC8260 PowerQUICC II UserÕs Manual MOTOROLA Part III The Hardware Interface ...
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Страница 430: ...Part IV viii MOTOROLA Part IV Communications Processor Module ...
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Страница 980: ...A 4 MPC8260 PowerQUICC II UserÕs Manual MOTOROLA Appendixes ...
Страница 1002: ...Index 22 MPC8260 PowerQUICC II UserÕs Manual MOTOROLA INDEX ...
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