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Register and Memory Mapping
Intel
®
Atom™ Processor E6xx Series Datasheet
58
5.4 Register Access Method
The registers and the connected devices can be accessed by the host through either a
direct register access method or an indirect register access method.
5.4.1 Direct Register Access
5.4.1.1 Hard Coded IO Access
The Intel
®
Atom™ Processor E6xx Series decodes the 16-bit address for a PORT IN
and/or PORT OUT from the CPU and directly accesses the register. These addresses are
unmovable.
Bus 0: Device 25: Function 0 PCI Express* Port 2
Bus 0: Device 26: Function 0 PCI Express* Port 3
Bus 0: Device 27: Function 0 Intel
®
High Definition Audio
β
Controller
Bus 0: Device 31: Function 0 LPC Interface
Figure 4. PCI Devices
Table 39. PCI Devices and Functions (Sheet 2 of 2)
Bus: Device: Function # Functional Description
Intel® Atom™ Processor
E6xx Series
IOH
PCI-E2
PCI-E3
- Atom™ Processor E6xx Series 1
- Legal Lines and Disclaimers 2
- Contents 10
- Revision History 21
- Segment dependent PCIe* 23
- 1.1 Terminology 24
- 1.2 Reference Documents 25
- Intel® Atom™ Processor 26
- E6xx Series 26
- 1.3.1 Low-Power Intel 27
- Architecture Core 27
- 1.3.3 Graphics 27
- 1.3.6.1 LVDS Interface 28
- Introduction 29
- 2.0 Signal Description 31
- 2.1 System Memory Signals 32
- 2.2.1 LVDS Signals 33
- 2.3 PCI Express* Signals 35
- 2.4 Intel 35
- Interface Signals 35
- 2.5 LPC Interface Signals 36
- 2.6 SMBus Interface Signals 36
- 2.7 SPI Interface Signals 36
- 2.10 JTAG and Debug Interface 38
- 2.12 General Purpose I/O 42
- 2.13 Functional Straps 42
- 2.14 Power and Ground Signals 43
- 3.0 Pin States 45
- 3.3.1 LVDS Signals 46
- 3.4 PCI Express* Signals 47
- 3.5 Intel 47
- 3.6 LPC Interface Signals 48
- 3.7 SMBus Interface Signals 48
- 3.8 SPI Interface Signals 48
- 3.11 JTAG and Debug Interface 49
- 3.13 General Purpose I/O 50
- 4.0 System Clock Domains 51
- System Clock Domains 52
- 5.1 Address Map 53
- 5.2 Introduction 53
- 5.3 System Memory Map 54
- Figure 3. System Address Map 55
- 5.3.1 I/O Map 56
- 5.4.1.1 Hard Coded IO Access 58
- 5.4.1.2 IO BAR 59
- 5.4.1.4 Memory BAR 59
- 5.4.2.1 PCI Config Space 59
- : 0000h - 0003h 60
- P – Device 3 Interrupt Pin 64
- R – Device 31 Interrupt Route 64
- 5.5.4 General Configuration 67
- Register and Memory Mapping 68
- 6.0 Memory Controller 69
- 6.5 Refresh Mode 70
- 6.7 Supported DRAM Devices 72
- Atom™ Processor E6xx Series 75
- Graphics, Video, and Display 76
- 7.2.3.2 Lighting Stages 77
- 7.2.4 Pixel Processing 78
- 7.2.5 Unified Shader 78
- 7.3.1.1 Encoding Pipeline 79
- 7.3.1.2 Encode Codec Support 80
- 7.4 Video Decode 81
- 7.4.1.1 Motion Compensation 82
- 7.4.1.2 Deblocking 82
- 7.4.1.4 Pixel Format 83
- Controller 84
- 7.5.1.1 Planes 85
- 7.5.1.2 Display Pipes 86
- 7.5.2.1 LVDS Port 87
- 7.5.2.4 SDVO DVI/HDMI 89
- 7.7 Configuration Registers 90
- 8.1.2.1 Sleep State Support 111
- 8.1.2.4 SMI/SCI Generation 112
- VID — Vendor Identification 113
- 8.2.1.3 CMD — PCI Command 114
- 8.2.1.4 PSTS — Primary Status 114
- DID — Device Identification 114
- CMD — PCI Command 114
- 8.2.1.6 CC — Class Code 115
- PSTS — Primary Status 115
- 8.2.1.7 CLS — Cache Line Size 116
- 8.2.1.8 HTYPE — Header Type 116
- PBN — Primary Bus Number 116
- — I/O Limit Address 118
- 8.2.1.21 IPIN — Interrupt Pin 121
- 01 0b RW SE 122
- 8.2.2.4 DCTL — Device Control 124
- 8.2.2.5 DSTS — Device Status 125
- 8.2.2.7 LCTL — Link Control 126
- 8.2.2.8 LSTS — Link Status 126
- 8.2.2.10 SLCTL — Slot Control 127
- 8.2.2.11 SLSTS — Slot Status 128
- 8.2.2.12 RCTL — Root Control 129
- 8.2.2.14 RSTS — Root Status 129
- RCAP — Root Capabilities 129
- 8.2.5 Port Configuration 132
- FD — Functional Disable 135
- PCI Express* 136
- 9.0 Intel 137
- High Definition Audio 137
- 9.2.1 Dock Sequence 138
- 9.2.2 Undock Sequence 139
- 9.3.1 Registers 140
- Table 177. Intel 141
- Control Register 147
- Register 148
- Capability Header Register 156
- 9.3.2.1 Intel 157
- HD Audio 157
- Registers 157
- Table 225. Intel 158
- GCTL – Global Control 162
- (Sheet 2 of 2) 182
- 10.0 LPC Interface (D31:F0) 187
- 10.2.1 ID—Identifiers 188
- 10.2.5 CC—Class Code Register 190
- 10.4 Interrupt Control 195
- 10.4.3 WDTBA-WDT Base Address 196
- 10.5.2 BDE—BIOS Decode Enable 197
- LPC Interface (D31:F0) 200
- 11.0 ACPI Devices 201
- 11.1.5.1 Read Back Command 202
- 11.1.6 Timer Programming 204
- 11.1.7.1 Simple Read 205
- 11.1.7.3 Read Back Command 206
- Capabilities 208
- 11.2.2 Theory Of Operation 210
- 11.2.2.3 Interrupts 211
- 11.3.1 Overview 212
- 11.3.2 I/O Registers 213
- 11.3.3.1 Generating 218
- 11.3.3.2 Acknowledging 218
- 11.3.4.1 ICW1 219
- 11.3.4.2 ICW2 220
- 11.3.4.3 ICW3 220
- 11.3.4.4 ICW4 220
- 11.3.6.1 Fully Nested Mode 220
- 11.3.6.5 Poll Mode 221
- 11.3.7.1 Normal EOI 222
- 11.3.7.2 Automatic EOI 222
- 11.3.8.2 Special Mask Mode 222
- 11.4.1 Memory Registers 223
- 11.4.2 Index Registers 224
- 11.4.4.1 Theory of Operation 226
- 11.4.4.2 EOI 226
- 11.5 Serial Interrupt 227
- 11.5.2 Start Frame 228
- 11.5.3 Data Frames 228
- 11.5.4 Stop Frame 228
- 11.6 Real Time Clock 230
- : Register A 231
- 11.6.4 Update Cycles 233
- 11.6.5 Interrupts 233
- 11.7 General Purpose I/O 234
- 11.7.3.1 Power Wells 240
- 11.7.3.2 SMI# and SCI Routing 240
- 11.7.3.3 Triggering 240
- 11.8 SMBus Controller 241
- 11.8.3 Overview 244
- 11.8.5.1 Clock Stretching 245
- 11.8.5.2 Bus Time Out 246
- 11.9.4 SPI Protocol 247
- 11.9.5 Host Side Interface 249
- SPIA – SPI Address 252
- ACPI Devices 256
- 11.9.5.14 Flash Protection 258
- Control Register. This is 259
- 11.9.6 SPI Clocking 260
- 11.9.7.1 Run Time Updates 261
- 11.9.7.2 BIOS Sector Updates 261
- 11.9.7.3 SPI Initialization 262
- 11.10 Watchdog Timer 263
- 11.10.4 Theory Of Operation 270
- 11.10.4.3 Reload Sequence 271
- 11.10.4.4 Low Power State 271
- 12.0 Absolute Maximum Ratings 273
- 12.1 Absolute Maximum Rating 274
- 13.0 DC Characteristics 275
- 14.1 Package Diagrams 282
- Figure 11. Intel 283
- Figure 12. Intel 284
- Figure 13. Intel 285
- Figure 14. Intel 286
- Figure 15. Intel 287
- Figure 16. Intel 288
- Figure 17. Intel 289
- Table 407. Pin List 290
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