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Table 6-20: Power Management Capabilities Register Field Descriptions
Bits Field Description
[31:24]
Data register
This field indicates in which power states a function can assert
the PME# message.
[23:16]
reserved
—
[15]
PME_status
When set to 1, indicates that the function would normally assert
the PME# message independently of the state of the PME_en bit.
[14:13]
data_scale
This field indicates the scaling factor when interpreting the value
retrieved from the data register. This field is read-only.
[12:9]
data_select
This field indicates which data should be reported through the
data register and the data_scale field.
[8]
PME_EN
1: indicates that the function can assert PME#0: indicates that the
function cannot assert PME#
[7:2]
reserved
—
[1:0]
PM_state
Specifies the power management state of the operating condition
being described. The following encodings are defined:
• 2b’00 D0
• 2b’01 D1
• 2b’10 D2
• 2b’11 D3
A device returns 2b’11 in this field and Aux or PME Aux in the
type register to specify the D3-Cold PM state. An encoding of
2b’11 along with any other type register value specifies the D3-
Hot state.
Figure 6-42: pme_to_sr and pme_to_cr in an Endpoint IP core
The following figure illustrates the behavior of pme_to_sr and pme_to_cr in an Endpoint. First, the Hard
IP receives the PME_turn_off message which causes pme_to_sr to assert. Then, the Application Layer
sends the PME_to_ack message to the Root Port by asserting pme_to_cr.
pme_to_sr
pme_to_cr
hard
IP
6-56
Power Management Signals
UG-01145_avst
2015.05.04
Altera Corporation
Interfaces and Signal Descriptions
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- Solutions 1
- Contents 2
- Datasheet 8
- Arria 10 Features 9
- Interface 10
- UG-01145_avst 11
- 2015.05.04 11
- Release Information 13
- Device Family Support 14
- Configurations 14
- Altera FPGA 15
- Debug Features 17
- IP Core Verification 18
- Recommended Speed Grades 18
- Qsys Design Flow 21
- Generating the Testbench 22
- Simulating the Example Design 22
- Directory Description 23
- Time TLP Type Payload 23
- TLP Header 23
- Modifying the Example Design 26
- Component 27
- File Name Description 28
- Subscribe 31
- 2014.08.18 32
- Generating the Qsys System 33
- Parameter Value 34
- Parameter Settings 44
- Parameter Value Description 45
- Device Capabilities 52
- Error Reporting 53
- Link Capabilities 54
- MSI and MSI-X Capabilities 55
- Slot Capabilities 56
- Power Management 57
- PHY Characteristics 58
- Avalon‑ST RX Interface 68
- Packet TLP 73
- Aligned Addresses 77
- Avalon-ST TX Interface 82
- Single Packet Per Cycle 95
- Data 0 Header 2 96
- Clock Signals 97
- Signal Direction Description 100
- Related Information 101
- ECRC Forwarding 102
- Error Signals 102
- Interrupts for Endpoints 103
- Interrupts for Root Ports 104
- Completion Side Band Signals 104
- Signal Directi 105
- Description 105
- Parity Signals 107
- LMI Signals 108
- Altera Corporation 112
- Send Feedback 112
- D E F 0 1 2 3 113
- Field and Bit Map 117
- 0134678951 117
- Bit(s) Field Description 118
- Power Management Signals 120
- 15 011623 8 2791213142431 121
- Bits Field Description 122
- Serial Data Signals 123
- PIPE Interface Signals 123
- Test Signals 128
- Registers 129
- Altera-Defined VSEC Registers 136
- CvP Registers 137
- Bits Register Description 141
- Arria 10 Reset and Clocks 144
- Clock Domains 147
- Clock Summary 149
- Interrupts 150
- MSI Interrupts 151
- Allocated 152
- Implementing MSI-X Interrupts 153
- Legacy Interrupts 155
- Error Handling 157
- Physical Layer Errors 158
- Data Link Layer Errors 158
- Transaction Layer Errors 159
- Error Type Description 160
- Status Bit Conditions 163
- IP Core Architecture 165
- Hard IP for PCI Express 166
- Top-Level Interfaces 167
- Clocks and Reset 168
- Hard IP Reconfiguration 168
- Transaction Layer 169
- Configuration Space 170
- (Soft Logic) 172
- Data Link Layer 174
- Physical Layer 176
- TX Packets 177
- Supported Message Types 179
- Power Management Messages 180
- Error Signaling Messages 181
- Locked Transaction Message 182
- Slot Power Limit Message 182
- Vendor-Defined Messages 182
- Hot Plug Messages 183
- Receive Buffer Reordering 185
- Using Relaxed Ordering 187
- Throughput Optimization 190
- Throughput of Posted Writes 192
- Design Implementation 194
- SDC Timing Constraints 195
- Optional Features 196
- ECRC on the RX Path 197
- ECRC on the TX Path 198
- TLP on Applica‐ 199
- TLP on Link Comments 199
- Testbench and Design Example 201
- Root Port Testbench 203
- Chaining DMA Design Examples 204
- Root Complex 205
- Chaining DMA 205
- Hard IP for 205
- PCI Express 205
- BAR/Address Map 208
- Memory BAR Mapping 209
- Bit Field Description 210
- Addr Register Name 211
- Byte Address 213
- Offset to Base 213
- Descriptor Type Description 213
- Test Driver Module 215
- DMA Write Cycles 216
- DMA Read Cycles 218
- Root Port Design Example 220
- Root Port 221
- Variation 221
- (variation_name.v) 221
- Root Port BFM 222
- BFM Configuration Procedures 223
- BFM Request Interface 223
- BFM Memory Map 224
- Offset (Bytes) Description 226
- BFM Procedures and Functions 230
- Location altpcietb_bfm_rdwr.v 231
- Shared Memory Constants 239
- Constant Description 240
- Location 245
- Setting Up Simulation 257
- Debugging 259
- Use Third-Party PCIe Analyzer 263
- BIOS Enumeration Issues 263
- Frequently Asked Questions 264
- 7 6 5 4 3 2 1 0 265
- Core Config 8 4 1 265
- Additional Information 267
- Date Version Changes Made 268
- How to Contact Altera 272
- Typographic Conventions 273
- Visual Cue Meaning 274
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