ARM Cortex-A35

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Chapter A9

ACE Master Interface

This chapter describes the ACE master interface.

It contains the following sections:

• A9.1 About the ACE master interface on page A9-114.

• A9.2 ACE configurations on page A9-115.

• A9.3 ACE privilege information on page A9-116.

• A9.4 ACE transactions on page A9-117.

• A9.5 Attributes of the ACE master interface on page A9-120.

• A9.6 Snoop channel properties on page A9-122.

• A9.7 AXI compatibility mode on page A9-123.

100236_0100_00_en

reserved.

A9-113

Non-Confidential

Main Page

Default Chapter5
- Table of Contents5
Preface19
- About this Book20
- Feedback25
Part a Functional Description27
- Chapter A129
Introduction29
- A1.1 about the Cortex ® -A35 Processor29
- A1.2 Features31
- A1.3 Implementation Options32
- Supported Standards and Specifications34
- A1.5 Test Features35
- A1.6 Design Tasks36
- A1.7 Product Revisions37
- Chapter A239
Technical Overview39
- A2.1 Components40
- A2.2 Interfaces44
- C4.1 about the Cross-Trigger45
- A2.3 about System Control46
- A2.4 about the Generic Timer47
- A2.5 about the Memory Model48
Chapter A349
Clocks, Resets, and Input Synchronization49
- A3.1 Clocks50
- A3.2 Input Synchronization51
- A3.3 Resets52
Chapter A457
Power Management57
- A4.1 Power Domains58
- A4.2 Power Modes61
- A4.3 Core Wait for Interrupt62
- A4.4 Core Wait for Event63
- A4.5 L2 Wait for Interrupt64
- A4.6 Powering down an Individual Core65
- A4.7 Powering up an Individual Core66
- A4.8 Powering down the Processor Without System Driven L2 Flush67
- A4.9 Powering up the Processor Without System Driven L2 Flush68
- A4.10 Powering down the Processor with System Driven L2 Flush69
- A4.11 Powering up the Processor with System Driven L2 Flush70
- A4.12 Entering Dormant Mode71
- A4.13 Exiting Dormant Mode72
- A4.14 Event Communication Using WFE or SEV73
- A4.15 Communication to the Power Management Controller74
- A4.16 STANDBYWFI[3:0] and STANDBYWFIL2 Signals75
- A4.17 Q-Channel76
Chapter A577
- A5.1 Cached Memory Types78
- A5.2 Coherency between Data Caches with the MOESI Protocol79
- A5.3 Cache Misses, Unexpected Cache Hits, and Speculative Fetches80
- A5.4 Disabling a Cache81
- A5.5 Invalidating or Cleaning a Cache82
- A5.6 about Read Allocate Mode83
- A5.7 about Cache Protection84
- A5.8 Error Reporting86
- A5.9 Error Injection87
Cache Behavior and Cache Protection77
Chapter A689
L1 Memory System89
- A6.1 about the L1 Memory System90
- A6.2 TLB Organization91
- A6.3 Program Flow Prediction92
- A6.4 about the Internal Exclusive Monitor93
- A6.5 about Data Prefetching95
Chapter A797
L2 Memory System97
- A7.1 about the L2 Memory System98
- A7.2 Snoop and Maintenance Requests100
- A7.3 Support for Memory Types101
- A7.4 Memory Type Information Exported from the Processor102
- A7.5 Handling of External Aborts103
- Chapter A8105
AXI Master Interface105
- A8.1 about the AXI Master Interface106
- A8.2 AXI Privilege Information107
- A8.3 AXI Transactions108
- Attributes of the AXI Master Interface110
- Chapter A9113
ACE Master Interface113
- A9.1 about the ACE Master Interface114
- A9.2 ACE Configurations115
- A9.3 ACE Privilege Information116
- A9.4 ACE Transactions117
- Attributes of the ACE Master Interface120
- Snoop Channel Properties122
- A9.7 AXI Compatibility Mode123
- Chapter A10125
- Chapter A11135
ACP Slave Interface135
- A11.1 about the ACP136
- A11.2 Transfer Size Support137
- A11.3 ACP Performance138
- A11.4 ACP User Signals139
- Chapter A12141
GIC CPU Interface141
- A12.1 Bypassing the GIC CPU Interface142
- A12.2 Memory Map for the GIC CPU Interface143
Part B Register Descriptions145
- Chapter B1147
Aarch32 System Registers147
- B1.1 Aarch32 Register Summary150
- B1.2 C0 Registers152
- B1.3 C1 Registers155
- B1.4 C2 Registers156
- B1.5 C3 Registers157
- B1.6 C4 Registers158
- B1.7 C5 Registers159
- B1.8 C6 Registers160
- B1.9 C7 Registers161
- B1.10 C7 System Operations162
- B1.11 C8 System Operations165
- B1.12 C9 Registers167
- B1.13 C10 Registers168
- B1.14 C11 Registers169
- B1.15 C12 Registers170

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