AMD SC1200, SC1201 User Manual

AMD Geode™ SC1200/SC1201 Processor Data Book

March 2006

Publication ID: 32579B

AMD Geode™ SC1200/SC1201 Processor Data Book

The contents of this document are provided in connection with Advanced Micro Devices, Inc. (“AMD”) products. AMD makes no representations or warranties with respect to the accuracy or completeness of the contents of this publication and reserves the right to make changes to specifications and product descriptions at any time without notice. No license, whether express, implied, arising by estoppel or otherwise, to any intellectual property rights is granted by this publication. Except as set forth in AMD’s Standard Terms and Conditions of Sale, AMD assumes no liability whatsoever, and disclaims any express or implied warranty, relating to its products including, but not limited to, the implied warranty of merchantability, fitness for a particular purpose, or infringement of any intellectual property right.

AMD’s products are not designed, intended, authorized or warranted for use as components in systems intended for surgical implant into the body, or in other applications intended to support or sustain life, or in any other application in which the failure of AMD’s product could create a situation where personal injury, death, or severe property or environmental damage may occur. AMD reserves the right to discontinue or make changes to its products at any time without notice.

Contacts

www.amd.com

Trademarks

AMD, the AMD Arrow logo, and combinations thereof, and Geode, and Virtual System Architecture are trademarks of Advanced Micro Devices, Inc.

Microsoft and Windows are registered trademarks of Microsoft Corporation in the United States and/or other jurisdictions.

MMX is a registered trademark of Intel Corporation in the United States and/or other jurisdictions.

Other product names used in this publication are for identification purposes only and may be trademarks of their respective companies.

2 AMD Geode™ SC1200/SC1201 Processor Data Book

Contents 32579B

Contents

List of Figures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

List of Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

1.0 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

1.1 General Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

1.2 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

2.0 Architecture Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

2.1 GX1 Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

2.2 Video Processor Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

2.3 Core Logic Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

2.4 SuperI/O Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

2.5 Clock, Timers, and Reset Logic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

3.0 Signal Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

3.1 Ball Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

3.2 Strap Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

3.3 Multiplexing Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

3.4 Signal Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

4.0 General Configuration Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

4.1 Configuration Block Addresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

4.2 Pin Multiplexing, Interrupt Selection, and Base Address Registers . . . . . . . . . . . . . . . . . . . . . . 72

4.3 WATCHDOG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79

4.4 High-Resolution Timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81

4.5 Clock Generators and PLLs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83

5.0 SuperI/O Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89

5.1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90

5.2 Module Architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91

5.3 Configuration Structure / Access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92

5.4 Standard Configuration Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94

5.5 Real-Time Clock (RTC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105

5.6 System Wakeup Control (SWC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116

5.7 ACCESS.bus Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121

5.8 Legacy Functional Blocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129

AMD Geode™ SC1200/SC1201 Processor Data Book 3

32579B

Contents

6.0 Core Logic Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141

6.1 Feature List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141

6.2 Module Architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142

6.3 Register Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175

6.4 Chipset Register Space . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190

7.0 Video Processor Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 311

7.1 Module Architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 312

7.2 Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 313

7.3 Register Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 333

8.0 Debugging and Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 363

8.1 Testability (JTAG) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 363

9.0 Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 365

9.1 General Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 365

9.2 DC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 371

9.3 AC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 376

10.0 Package Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 437

10.1 Thermal Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 437

10.2 Physical Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 439

Appendix A Support Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 441

A.1 Order Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 441

A.2 Macrovision Product Notice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 441

A.3 Data Book Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 442

4 AMD Geode™ SC1200/SC1201 Processor Data Book

List of Figures 32579B

List of Figures

Figure 1-1. Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Figure 3-1. Signal Groups . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Figure 3-2. BGU481 Ball Assignment Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Figure 4-1. WATCHDOG Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79

Figure 4-2. Clock Generation Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83

Figure 4-3. Recommended Oscillator External Circuitry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

Figure 5-1. SIO Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89

Figure 5-2. Detailed SIO Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91

Figure 5-3. Standard Configuration Register File Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92

Figure 5-4. Standard Configuration Registers Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94

Figure 5-5. Recommended Oscillator External Circuitry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105

Figure 5-6. External Oscillator Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106

Figure 5-7. Divider Chain Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106

Figure 5-8. Power Supply Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108

Figure 5-9. Typical Battery Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108

Figure 5-10. Typical Battery Current: Battery Backed Power Mode @ T

Figure 5-11. Typical Battery Current: Normal Operation Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108

Figure 5-12. Interrupt/Status Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110

Figure 5-13. Bit Transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121

Figure 5-14. Start and Stop Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121

Figure 5-15. ACCESS.bus Data Transaction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122

Figure 5-16. ACCESS.bus Acknowledge Cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122

Figure 5-17. A Complete ACCESS.bus Data Transaction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123

Figure 5-18. UART Mode Register Bank Architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131

Figure 5-19. IRCP/SP3 Register Bank Architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135

Figure 6-1. Core Logic Module Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142

Figure 6-2. Non-Posted Fast-PCI to ISA Access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148

Figure 6-3. PCI to ISA Cycles with Delayed Transaction Enabled . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149

Figure 6-4. ISA DMA Read from PCI Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150

Figure 6-5. ISA DMA Write to PCI Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150

Figure 6-6. PCI Change to Sub-ISA and Back . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152

Figure 6-7. PIT Timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154

Figure 6-8. PIC Interrupt Controllers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155

Figure 6-9. PCI and IRQ Interrupt Mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156

Figure 6-10. SMI Generation for NMI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157

Figure 6-11. General Purpose Timer and UDEF Trap SMI Tree Example . . . . . . . . . . . . . . . . . . . . . . . . 165

Figure 6-12. PRD Table Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169

Figure 6-13. AC97 V2.0 Codec Signal Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170

Figure 6-14. Audio SMI Tree Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172

Figure 6-15. Typical Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173

Figure 7-1. Video Processor Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 312

Figure 7-2. NTSC 525 Lines, 60 Hz, Odd Field . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 314

Figure 7-3. NTSC 525 Lines, 60 Hz, Even Field . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 314

Figure 7-4. VIP Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 315

Figure 7-5. Capture Video Mode Bob Example Using One Video Frame Buffer . . . . . . . . . . . . . . . . . . 317

= 25°C . . . . . . . . . . . . . . . . . 108

AMD Geode™ SC1200/SC1201 Processor Data Book 5

32579B

List of Figures

Figure 7-6. Capture Video Mode Weave Example Using Two Video Frame Buffers . . . . . . . . . . . . . . . 319

Figure 7-7. Video Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 320

Figure 7-8. Horizontal Downscaler Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 321

Figure 7-9. Linear Interpolation Calculation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 322

Figure 7-10. Mixer/Blender Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 323

Figure 7-11. Graphics/Video Frame with Alpha Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 326

Figure 7-12. Color Key and Alpha Blending Logic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 328

Figure 7-13. TVOUT Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 329

Figure 7-14. DAC Voltage Levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 330

Figure 7-15. TFT Power Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 331

Figure 7-16. PLL Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 332

Figure 9-1. Differential Input Sensitivity for Common Mode Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . 374

Figure 9-2. General Drive level and Measurement Points . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 376

Figure 9-3. Memory Controller Drive Level and Measurement Points . . . . . . . . . . . . . . . . . . . . . . . . . . 377

Figure 9-4. Memory Controller Output Valid Timing Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 379

Figure 9-5. Read Data In Setup and Hold Timing Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 379

Figure 9-6. Video Input Port Timing Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 380

Figure 9-7. Video Output Port Timing Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 381

Figure 9-8. TFT Timing Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 382

Figure 9-9. ACB Signals: Rising and Falling Timing Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 386

Figure 9-10. ACB Start and Stop Condition Timing Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 386

Figure 9-11. ACB Start Condition TIming Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 387

Figure 9-12. ACB Data Bit Timing Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 387

Figure 9-13. Testing Setup for PCI Slew Rate and Minimum Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 388

Figure 9-14. V/I Curves for PCI Output Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 389

Figure 9-15. PCICLK Timing and Measurement Points . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 390

Figure 9-16. Load Circuits for PCI Maximum Time Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 391

Figure 9-17. PCI Output Timing Measurement Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 392

Figure 9-18. PCI Input Timing Measurement Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 393

Figure 9-19. PCI Reset Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 393

Figure 9-20. Sub-ISA Read Operation Timing Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 396

Figure 9-21. Sub-ISA Write Operation Timing Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 397

Figure 9-22. LPC Output Timing Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 398

Figure 9-23. LPC Input Timing Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 398

Figure 9-24. IDE Reset Timing Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 399

Figure 9-25. Register Transfer to/from Device Timing Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 401

Figure 9-26. PIO Data Transfer to/from Device Timing Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 403

Figure 9-27. Multiword DMA Data Transfer Timing Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 405

Figure 9-28. Initiating an UltraDMA Data in Burst Timing Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 407

Figure 9-29. Sustained UltraDMA Data In Burst Timing Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 408

Figure 9-30. Host Pausing an UltraDMA Data In Burst Timing Diagram . . . . . . . . . . . . . . . . . . . . . . . . . 409

Figure 9-31. Device Terminating an UltraDMA Data In Burst Timing Diagram . . . . . . . . . . . . . . . . . . . . 410

Figure 9-32. Host Terminating an UltraDMA Data In Burst Timing Diagram . . . . . . . . . . . . . . . . . . . . . . 411

Figure 9-33. Initiating an UltraDMA Data Out Burst Timing Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . 412

Figure 9-34. Sustained UltraDMA Data Out Burst Timing Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 413

Figure 9-35. Device Pausing an UltraDMA Data Out Burst Timing Diagram . . . . . . . . . . . . . . . . . . . . . . 414

Figure 9-36. Host Terminating an UltraDMA Data Out Burst Timing Diagram . . . . . . . . . . . . . . . . . . . . . 415

Figure 9-37. Device Terminating an UltraDMA Data Out Burst Timing Diagram . . . . . . . . . . . . . . . . . . . 416

Figure 9-38. USB Data Signal Rise and Fall Timing Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 419

Figure 9-39. USB Source Differential Data Jitter Timing Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 419

Figure 9-40. USB EOP Width Timing Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 420

Figure 9-41. USB Receiver Jitter Tolerance Timing Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 420

Figure 9-42. UART, Sharp-IR, SIR, and Consumer Remote Control Timing Diagram . . . . . . . . . . . . . . . 421

Figure 9-43. Fast IR Timing (MIR and FIR) Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 422

Figure 9-44. Standard Parallel Port Typical Data Exchange Timing Diagram . . . . . . . . . . . . . . . . . . . . . 423

6 AMD Geode™ SC1200/SC1201 Processor Data Book

List of Figures

32579B

Figure 9-45. Enhanced Parallel Port Timing Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 424

Figure 9-46. ECP Forward Mode Timing Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 425

Figure 9-47. ECP Reverse Mode Timing Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 426

Figure 9-48. AC97 Reset Timing Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 427

Figure 9-49. AC97 Sync Timing Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 427

Figure 9-50. AC97 Clocks Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 428

Figure 9-51. AC97 Data TIming Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 429

Figure 9-52. AC97 Rise and Fall Timing Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 430

Figure 9-53. AC97 Low Power Mode Timing Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 431

Figure 9-54. PWRBTN# Trigger and ONCTL# Timing Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 432

Figure 9-55. GPWIO and ONCTL# Timing Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 432

Figure 9-56. Power-Up Sequencing With PWRBTN# Timing Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 433

Figure 9-57. Power-Up Sequencing Without PWRBTN# Timing Diagram . . . . . . . . . . . . . . . . . . . . . . . . 434

Figure 9-58. TCK Measurement Points and Timing Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 435

Figure 9-59. JTAG Test Timing Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 436

Figure 10-1. Heatsink Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 438

Figure 10-2. BGU481 Package - Top View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 439

Figure 10-3. BGU481 Package - Bottom View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 440

AMD Geode™ SC1200/SC1201 Processor Data Book 7

32579B

List of Figures

8 AMD Geode™ SC1200/SC1201 Processor Data Book

List of Tables 32579B

List of Tables

Table 2-1. SC1200/SC1201 Processor Memory Controller Register Summary . . . . . . . . . . . . . . . . . . . 18

Table 2-2. SC1200/SC1201 Processor Memory Controller Registers . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Table 3-1. Signal Definitions Legend . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Table 3-2. BGU481 Ball Assignment - Sorted by Ball Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Table 3-3. BGU481 Ball Assignment - Sorted Alphabetically by Signal Name . . . . . . . . . . . . . . . . . . . 40

Table 3-4. Strap Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Table 3-5. Two-Signal/Group Multiplexing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Table 3-6. Three-Signal/Group Multiplexing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Table 3-7. Four-Signal/Group Multiplexing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

Table 4-1. General Configuration Block Register Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

Table 4-2. Pin Multiplexing, Interrupt Selection, and Base Address Registers . . . . . . . . . . . . . . . . . . . . 72

Table 4-3. WATCHDOG Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80

Table 4-4. High-Resolution Timer Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82

Table 4-5. Crystal Oscillator Circuit Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

Table 4-6. Core Clock Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

Table 4-7. Strapped Core Clock Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

Table 4-8. Clock Generator Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87

Table 5-1. SIO Configuration Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92

Table 5-2. LDN Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92

Table 5-3. Standard Configuration Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95

Table 5-4. SIO Control and Configuration Register Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97

Table 5-5. SIO Control and Configuration Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .97

Table 5-6. Relevant RTC Configuration Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .98

Table 5-7. RTC Configuration Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99

Table 5-8. Relevant SWC Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100

Table 5-9. Relevant IRCP/SP3 Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101

Table 5-10. IRCP/SP3 Configuration Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101

Table 5-11. Relevant Serial Ports 1 and 2 Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102

Table 5-12. Serial Ports 1 and 2 Configuration Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102

Table 5-13. Relevant ACB1 and ACB2 Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103

Table 5-14. ACB1 and ACB2 Configuration Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103

Table 5-15. Relevant Parallel Port Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104

Table 5-16. Parallel Port Configuration Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104

Table 5-17. Crystal Oscillator Circuit Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105

Table 5-18. System Power States . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109

Table 5-19. RTC Register Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111

Table 5-20. RTC Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111

Table 5-21. Divider Chain Control / Test Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114

Table 5-22. Periodic Interrupt Rate Encoding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114

Table 5-23. BCD and Binary Formats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114

Table 5-24. Standard RAM Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115

Table 5-25. Extended RAM Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115

Table 5-26. Time Range Limits for CEIR Protocols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116

Table 5-27. Banks 0 and 1 - Common Control and Status Register Map . . . . . . . . . . . . . . . . . . . . . . . . 117

Table 5-28. Bank 1 - CEIR Wakeup Configuration and Control Register Map . . . . . . . . . . . . . . . . . . . . 117

AMD Geode™ SC1200/SC1201 Processor Data Book 9

32579B

List of Tables

Table 5-29. Banks 0 and 1 - Common Control and Status Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . 118

Table 5-30. Bank 1 - CEIR Wakeup Configuration and Control Registers . . . . . . . . . . . . . . . . . . . . . . . 119

Table 5-31. ACB Register Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126

Table 5-32. ACB Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126

Table 5-33. Parallel Port Register Map for First Level Offset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129

Table 5-34. Parallel Port Register Map for Second Level Offset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129

Table 5-35. Parallel Port Bit Map for First Level Offset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130

Table 5-36. Parallel Port Bit Map for Second Level Offset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130

Table 5-37. Bank 0 Register Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131

Table 5-38. Bank Selection Encoding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132

Table 5-39. Bank 1 Register Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132

Table 5-40. Bank 2 Register Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132

Table 5-41. Bank 3 Register Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132

Table 5-42. Bank 0 Bit Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133

Table 5-43. Bank 1 Bit Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133

Table 5-44. Bank 2 Bit Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134

Table 5-45. Bank 3 Bit Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134

Table 5-46. Bank 0 Register Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135

Table 5-47. Bank Selection Encoding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136

Table 5-48. Bank 1 Register Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136

Table 5-49. Bank 2 Register Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136

Table 5-50. Bank 3 Register Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137

Table 5-51. Bank 4 Register Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137

Table 5-52. Bank 5 Register Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137

Table 5-53. Bank 6 Register Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138

Table 5-54. Bank 7 Register Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138

Table 5-55. Bank 0 Bit Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138

Table 5-56. Bank 1 Bit Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139

Table 5-57. Bank 2 Bit Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139

Table 5-58. Bank 3 Bit Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139

Table 5-59. Bank 4 Bit Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139

Table 5-60. Bank 5 Bit Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140

Table 5-61. Bank 6 Bit Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140

Table 5-62. Bank 7 Bit Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140

Table 6-1. Physical Region Descriptor Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145

Table 6-2. UltraDMA/33 Signal Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146

Table 6-3. Cycle Multiplexed PCI / Sub-ISA Balls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151

Table 6-4. PIC Interrupt Mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155

Table 6-5. Wakeup Events Capability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159

Table 6-6. Power Planes Control Signals vs. Sleep States . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160

Table 6-7. Power Planes vs. Sleep/Global States . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160

Table 6-8. Power Management Events . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160

Table 6-9. Device Power Management Programming Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 166

Table 6-10. Bus Masters That Drive Specific Slots of the AC97 Interface . . . . . . . . . . . . . . . . . . . . . . . 167

Table 6-11. Physical Region Descriptor Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 168

Table 6-12. Cycle Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 174

Table 6-13. PCI Configuration Address Register (0CF8h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175

Table 6-14. F0: PCI Header/Bridge Configuration Registers for GPIO and LPC Support Summary . . . 176

Table 6-15. F0BAR0: GPIO Support Registers Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 179

Table 6-16. F0BAR1: LPC Support Registers Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 179

Table 6-17. F1: PCI Header Registers for SMI Status and ACPI Support Summary . . . . . . . . . . . . . . . 180

Table 6-18. F1BAR0: SMI Status Registers Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 180

Table 6-19. F1BAR1: ACPI Support Registers Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 181

Table 6-20. F2: PCI Header Registers for IDE Controller Support Summary . . . . . . . . . . . . . . . . . . . . . 182

Table 6-21. F2BAR4: IDE Controller Support Registers Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 183

10 AMD Geode™ SC1200/SC1201 Processor Data Book

List of Tables

32579B

Table 6-22. F3: PCI Header Registers for Audio Support Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . 183

Table 6-23. F3BAR0: Audio Support Registers Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 184

Table 6-24. F5: PCI Header Registers for X-Bus Expansion Support Summary . . . . . . . . . . . . . . . . . . 185

Table 6-25. F5BAR0: I/O Control Support Registers Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185

Table 6-26. PCIUSB: USB PCI Configuration Register Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186

Table 6-27. USB_BAR: USB Controller Registers Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 187

Table 6-28. ISA Legacy I/O Register Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 188

Table 6-29. F0: PCI Header/Bridge Configuration Registers for GPIO and LPC Support . . . . . . . . . . . 190

Table 6-30. F0BAR0+I/O Offset: GPIO Configuration Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 224

Table 6-31. F0BAR1+I/O Offset: LPC Interface Configuration Registers . . . . . . . . . . . . . . . . . . . . . . . . 228

Table 6-32. F1: PCI Header Registers for SMI Status and ACPI Support . . . . . . . . . . . . . . . . . . . . . . . 236

Table 6-33. F1BAR0+I/O Offset: SMI Status Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 237

Table 6-34. F1BAR1+I/O Offset: ACPI Support Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 247

Table 6-35. F2: PCI Header/Channels 0 and 1 Registers for IDE Controller Configuration . . . . . . . . . . 256

Table 6-36. F2BAR4+I/O Offset: IDE Controller Configuration Registers . . . . . . . . . . . . . . . . . . . . . . . . 260

Table 6-37. F3: PCI Header Registers for Audio Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 262

Table 6-38. F3BAR0+Memory Offset: Audio Configuration Registers . . . . . . . . . . . . . . . . . . . . . . . . . . 263

Table 6-39. F5: PCI Header Registers for X-Bus Expansion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 277

Table 6-40. F5BAR0+I/O Offset: X-Bus Expansion Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 281

Table 6-41. PCIUSB: USB PCI Configuration Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 283

Table 6-42. USB_BAR+Memory Offset: USB Controller Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . 285

Table 6-43. DMA Channel Control Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 296

Table 6-44. DMA Page Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 301

Table 6-45. Programmable Interval Timer Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 302

Table 6-46. Programmable Interrupt Controller Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 304

Table 6-47. Keyboard Controller Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 307

Table 6-48. Real-Time Clock Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 308

Table 6-49. Miscellaneous Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 308

Table 7-1. Direct Mode and Capture Mode Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 316

Table 7-2. Valid Mixing/Blending Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 324

Table 7-3. Truth Table for Alpha Blending . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 327

Table 7-4. Flicker Filter Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 329

Table 7-5. F4: PCI Header Registers for Video Processor Support Summary . . . . . . . . . . . . . . . . . . . 333

Table 7-6. F4BAR0: Video Processor Configuration Registers Summary . . . . . . . . . . . . . . . . . . . . . . 333

Table 7-7. F4BAR2: VIP Support Registers Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 335

Table 7-8. F4: PCI Header Registers for Video Processor Support Registers . . . . . . . . . . . . . . . . . . . 336

Table 7-9. F4BAR0+Memory Offset: Video Processor Configuration Registers . . . . . . . . . . . . . . . . . . 338

Table 7-10. F4BAR2+Memory Offset: VIP Configuration Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . 359

Table 8-1. JTAG Mode Instruction Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 363

Table 9-1. Electro Static Discharge (ESD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 365

Table 9-2. Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 365

Table 9-3. Operating Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 366

Table 9-4. Power Planes of External Interface Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 367

Table 9-5. System Conditions Used to Measure SC1200/SC1201 Current During On State . . . . . . . . 368

Table 9-6. DC Characteristics for On State . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 368

Table 9-7. DC Characteristics for Active Idle, Sleep, and Off States . . . . . . . . . . . . . . . . . . . . . . . . . . 369

Table 9-8. Ball Capacitance and Inductance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 369

Table 9-9. Balls with PU/PD Resistors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 370

Table 9-10. Buffer Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 371

Table 9-11. Default Levels for Measurement of Switching Parameters . . . . . . . . . . . . . . . . . . . . . . . . . 376

Table 9-12. Memory Controller Timing Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 378

Table 9-13. Video Input Port Timing Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 380

Table 9-14. Video Output Port Timing Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 381

Table 9-15. TFT Timing Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 382

Table 9-16. CRT VESA Compatible DAC (RED, GREEN, and BLUE Outputs) . . . . . . . . . . . . . . . . . . . 383

AMD Geode™ SC1200/SC1201 Processor Data Book 11

32579B

List of Tables

Table 9-17. TV DAC (4 Outputs: CVBS, SVY/TVR, SVC/TVB, CVBS/TVG) . . . . . . . . . . . . . . . . . . . . . 384

Table 9-18. ACCESS.bus Input Timing Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 385

Table 9-19. ACCESS.bus Output Timing Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 385

Table 9-20. PCI AC Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 388

Table 9-21. PCI Clock Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 390

Table 9-22. PCI Timing Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 391

Table 9-23. Measurement Condition Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 392

Table 9-24. Sub-ISA Timing Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 394

Table 9-25. LPC and SERIRQ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 398

Table 9-26. IDE General Timing Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 399

Table 9-27. IDE Register Transfer to/from Device Timing Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . 400

Table 9-28. IDE PIO Data Transfer to/from Device Timing Parameters . . . . . . . . . . . . . . . . . . . . . . . . . 402

Table 9-29. IDE Multiword DMA Data Transfer Timing Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . 404

Table 9-30. IDE UltraDMA Data Burst Timing Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 406

Table 9-31. USB Timing Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 417

Table 9-32. UART, Sharp-IR, SIR, and Consumer Remote Control Timing Parameters . . . . . . . . . . . . 421

Table 9-33. Fast IR Port Timing Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 422

Table 9-34. Standard Parallel Port Timing Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 423

Table 9-36. ECP Forward Mode Timing Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 425

Table 9-37. ECP Reverse Mode Timing Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 426

Table 9-38. AC Reset Timing Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 427

Table 9-39. AC97 Sync Timing Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 427

Table 9-40. AC97 Clocks Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 428

Table 9-41. AC97 I/O Timing Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 429

Table 9-42. AC97 Signal Rise and Fall Timing Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 430

Table 9-43. AC97 Low Power Mode Timing Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 431

Table 9-44. PWRBTN# Timing Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 432

Table 9-45. Power Management Event (GPWIO) and ONCTL# Timing Parameters . . . . . . . . . . . . . . . 432

Table 9-46. Power-Up Sequence Using the Power Button Timing Parameters . . . . . . . . . . . . . . . . . . . 433

Table 9-47. Power-Up Sequence Not Using the Power Button Timing Parameters . . . . . . . . . . . . . . . . 434

Table 9-48. JTAG Timing Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 435

Table 10-1. q

(×C/W) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 437

Table 10-2. Case-to-Ambient Thermal Resistance Example @ 85×C . . . . . . . . . . . . . . . . . . . . . . . . . . 437

Table A-1. Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 442

12 AMD Geode™ SC1200/SC1201 Processor Data Book

Overview 32579B

1.0Overview

1.1 General Description

The AMD Geode™ SC1200 and SC1201 processors are members of the AMD Geode processor family of fully integrated x86 system chips. The SC1200/SC1201 processor includes:

• The Geode GX1 processor module combines advanced CPU performance with MMX™ support, fully accelerated 2D graphics, a 64-bit synchronous DRAM (SDRAM) interface, a PCI bus controller, and a display controller.

• The Core Logic module includes: PC/AT functionality, a USB interface, an IDE interface, a PCI bus interface, an LPC bus interface, Advanced Configuration Power Interface (ACPI) version 1.0 compliant power management, and an audio codec interface.

• The SuperI/O module has: three serial ports (UART1, UART2, and UART3 with fast infrared), a parallel port, two ACCESS.bus (ACB) interfaces, and a real-time clock (RTC).

• A low-power CRT and TFT Video Processor module with a hardware video accelerator for scaling, filtering, and color space conversion, a Video Input Port (VIP), and an NTSC/PAL TV encoder. The SC1201 (only) processor has Macrovision copy protection support (see "Macrovision Product Notice" on page 441).

GX1

Memory Controller

Display

CPU Core

IDE I/F

USB

PCI/Sub-ISA

Bus I/F

GPIO

Audio Codec I/F

LPC I/F

2D Graphics

Accelerator

PCI Bus

Controller

Fast-PCI Bus

Bridge

PCI Bus

X-Bus

Config.

Block

Fast X-Bus

Core Logic

PIT

PIC

DMAC

Pwr Mgmnt

Configuration

ISA Bus I/F

These features, combined with the device’s low power consumption, enable a small form factor design making it ideal as the core for a set-top box or an advanced multimediatype device.

Figure 1-1 shows the relationships between the modules.

Video Processor

CRT I/F

Video

Scaling

Video Input Port (VIP)

Host Interface

SuperI/O

ISA Bus

RTC

I/F

Video Mixer

Clock & Reset Logic

TFT I/F

TV I/F

Parallel

Por t

ACB1

I/F

ACB2

I/F

UART1

UART2

UART3

& IR

VOP

Figure 1-1. Block Diagram

AMD Geode™ SC1200/SC1201 Processor Data Book 13

1.2 Features

32579B

Overview

General Features

■ 32-Bit x86 processor, up to 266 MHz, with MMX instruc-

tion set support

■ Memory controller with 64-bit SDRAM interface

■ 2D graphics accelerator

■ CRT controller with hardware video accelerator

■ CCIR-656 video input port with direct video for full

screen display

■ PC/AT functionality

■ PCI bus controller

■ IDE interface, two channels

■ USB, three ports, OHCI (OpenHost Controller Interface)

version 1.0 compliant

■ Audio, AC97/AMC97 version 2.0 compliant

■ Virtual System Architecture™ technology (VSA) support

■ Power management, ACPI (Advanced Configuration

Power Interface) version 1.0 compliant

■ Package:

— BGU481 (481-Terminal Ball Grid Array Cavity Up)

GX1 Processor Module

■ CPU Core:

— 32-Bit x86, 266 MHz, with MMX compatible instruc-

tion set support — 16 KB unified L1 cache — Integrated FPU (Floating Point Unit) — Re-entrant SMM (System Management Mode)

enhanced for VSA

■ 2D Graphics Accelerator:

— Accelerates BitBLTs, line draw and text — Supports all 256 raster operations — Supports transparent BLTs — Runs at core clock frequency

■ Memory Controller:

— 64-Bit SDRAM interface — 66 to 100 MHz frequency range — Direct interface with CPU/cache, display controller

and 2D graphic accelerator — Supports clock suspend and power-down/

self-refresh — Up to two banks of SDRAM (8 devices total) or one

SODIMM

■ Display Controller:

— Hardware graphics frame buffer compress/

decompress — Hardware cursor, 32x32 pixels

Video Processor Module

■ Video Accelerator:

— Flexible video scaling support of up to 8x (horizon-

tally and vertically)

— Bilinear interpolation filters (with two taps, and eight

phases) to smooth output video

■ Video/Graphics Mixer:

— 8-Bit value alpha blending — Three blending windows with constant alpha value — Color key

■ Video Input Port (VIP):

— Video capture or display — CCIR-656 and VESA Video Interface Port v1.1

compliant — Lock display timing to video input timing (GenLock) — Able to transfer video data into main memory — Direct video transfer for full screen display — Separate memory location for VBI

■ Video Output Port (VOP):

— VESA Video Interface Port Rev. 1.1 Task B format

■ CRT Interface:

— Uses three 8-bit DACs — Support up to 135 MHz — 1280x1024 non-interlaced CRT @ 8 bpp, up to 75 Hz — 1024x768 non-interlaced CRT @ 16 bpp, up to 85 Hz

■ TFT Interface:

— Direct connection to TFT panels — 800x600 non-interlaced TFT @ 16 bpp graphics, up

to 85 Hz — 1024x768 non-interlaced TFT @ 16 bpp graphics, up

to 75 Hz — TFT on IDE: FPCLK max is 40 MHz — TFT on Parallel Port: FPCLK max is 80 MHz

■ TV Interface:

— Uses four 10-bit DACs — 720x480 NTSC @ 60 Hz or 720x576 PAL @ 50 Hz — NTSC-M, PAL-M/B/D/G/H/I — Luminance filtering with 2x oversampling and sinx/x

correction — Chrominance filtering with 4x oversampling — Flicker filter with a three-line buffer for graphics

display on TV — Composite, S-Video and YCrCb component video

outputs — Analog video output interface supports SCART stan-

dard (both RGBCvbs and YCCvbs) — Support for VBI (Vertical Blanking Interval) transfer

from Video Port input to TV Encoder

14 AMD Geode™ SC1200/SC1201 Processor Data Book

Overview

32579B

— VBI Generation Support:

– Wide Screen Signaling (WSS) – Closed caption – Extended Data Services (EDS)

– Copy Generation Management System (CGMS) — Four-field NTSC or eight-field PAL generation — Macrovision copy protection version 7.1.L1 (SC1201

only, see "Macrovision Product Notice" on page 441)

Core Logic Module

■ Audio Codec Interface:

— AC97/AMC97 (Rev. 2.0) codec interface — Six DMA channels

■ PC/AT Functionality:

— Programmable Interrupt Controller (PIC), 8259A-

equivalent — Programmable Interval Timer (PIT), 8254-equivalent — DMA Controller (DMAC), 8237-equivalent

■ Power Management:

— ACPI v1.0 compliant — Sx state control of three power planes — Cx/Sx state control of clocks and PLLs — Thermal event input — Wakeup event support:

– Three general-purpose events

– AC97 codec event

– UART2 RI# signal

– Infrared (IR) event

■ General Purpose I/Os (GPIOs):

— 27 multiplexed GPIO signals

■ Low Pin Count (LPC) Bus Interface:

— Specification v1.0 compatible

■ PCI Bus Interface:

— PCI v2.1 compliant with wakeup capability — 32-Bit data path, up to 33 MHz — Glueless interface for an external PCI device — Fixed priority — 3.3V signal support only

■ Sub-ISA Bus Interface:

— Up to 16 MB addressing — Supports a chip select for ROM or Flash EPROM

boot device — Supports either:

– M-Systems DiskOnChip DOC2000 Flash file

system

– NAND EEPROM — Supports up to two chip selects for external I/O

devices — 8-Bit (optional 16-bit) data bus width — Shares balls with PCI signals — Is not a subtractive agent

■ IDE Interface:

— Two IDE channels for up to four external IDE devices — Supports ATA-33 synchronous DMA mode transfers,

up to 33 MB/s

■ Universal Serial Bus (USB):

— USB OpenHCI 1.0 compliant — Three ports

SuperI/O Module

■ Real-Time Clock (RTC):

— DS1287, MC146818 and PC87911 compatible — Multi-century calendar

■ ACCESS.bus (ACB) Interface:

— Two ACB interface ports

■ Parallel Port:

— EPP 1.9 compliant — IEEE 1284 ECP compliant, including level 2

■ Serial Port (UART):

— UART1, 16550A compatible (SIN, SOUT, BOUT

pins), used for SmartCard interface — UART2, 16550A compatible — Enhanced UART with fast Infrared (IR)

Other Features

■ High-Resolution Timer:

— 32-Bit counter with 1 µs count interval

■ WATCHDOG Timer:

— Interfaces to INTR, SMI, Reset

■ Clocks:

— Input (external crystals):

– 32.768 KHz (internal clock oscillator)

– 27 MHz (internal clock oscillator) —Output:

– AC97 clock (24.576 MHz)

– Memory controller clock (66 MHz to 100 MHz)

– PCI clock (33 MHz)

■ JTAG Testability:

— Bypass, Extest, Sample/Preload, IDcode, Clamp, HiZ

■ Voltages:

— Internal logic: 266 MHz @ 1.8V — Standby logic: 266 MHz @ 1.8V — I/O: 3.3V — Standby I/O: 3.3V — Battery (if used): 3.0V

AMD Geode™ SC1200/SC1201 Processor Data Book 15

32579B

Overview

16 AMD Geode™ SC1200/SC1201 Processor Data Book

Architecture Overview 32579B

2.0Architecture Overview

As illustrated in Figure 1-1 on page 13, the SC1200/ SC1201 processor contains the following modules in one integrated device:

• GX1 Module: — Combines advanced CPU performance with MMX

support, fully accelerated 2D graphics, a 64-bit synchronous DRAM (SDRAM) interface and a PCI bus controller. Integrates GX1 silicon revision 8.1.1.

• Video Processor Module: — A low-power CRT and TFT support module with a

hardware video accelerator for scaling, filtering and color space conversion, and a video input port (VIP). Includes an NTSC/PAL TV encoder.

• Core Logic Module: — Includes PC/AT functionality, an IDE interface, a

Universal Serial Bus (USB) interface, ACPI 1.0 compliant power management, and an audio codec interface.

• SuperI/O Module: — Includes two Serial Ports, an Infrared (IR) Port, a

Parallel Port, two ACCESS.bus interfaces, and a Real-Time Clock (RTC).

2.1 GX1 Module

The GX1 processor (silicon revision 8.1.1) is the central module of the SC1200/SC1201 processor. For detailed information regarding the GX1 module, refer to the AMD

Geode™ GX1 Processor Data Book and the AMD Geode™ GX1 Processor Silicon Revision 8.1.1 Specification Update documents.

The SC1200/SC1201 processor’s device ID is contained in the GX1 module. Software can detect the revision by reading the DIR0 and DIR1 Configuration registers (see Configuration registers in the AMD Geode™ GX1 Processor Data

Book). The AMD Geode™ SC1200/SC1201 Processor Specification Update document contains the specific val-

ues.

2.1.1 Memory Controller

The GX1 module is connected to external SDRAM devices. For more information see Section 3.4.2 "Memory Interface Signals" on page 50, and the “Memory Controller” chapter in the AMD Geode™ GX1 Processor Data Book.

There are some differences in the SC1200/SC1201 processor’s memory controller and the stand-alone GX1 processor’s memory controller:

1) There is drive strength/slew control in the SC1200/ SC1201 that is not in the GX1. The bits that control this function are in the MC_MEM_CNTRL1 and MC_MEM_CNTRL2 registers. In the GX1 processor, these bits are marked as reserved.

2) The SC1200/SC1201 supports two banks of memory. The GX1 supports four banks of memory. In addition, the SC1200/SC1201 supports a maximum of eight devices and the GX1 supports up to 32 devices. With this difference, the MC_BANK_CFG register is different.

Table 2-1 on page 18 summarizes the 32-bit registers contained in the SC1200/SC1201 processor’s memory controller. Table 2-2 on page 18 gives detailed register/bit formats.

AMD Geode™ SC1200/SC1201 Processor Data Book 17

32579B

Architecture Overview

Table 2-1. SC1200/SC1201 Processor Memory Controller Register Summary

GX_BASE+ Memory Offset

Width

(Bits) Type Name/Function Reset Value

8400h-8403h 32 R/W MC_MEM_CNTRL1. Memory Controller Control Register 1 248C0040h

8404h-8407h 32 R/W MC_MEM_CNTRL2. Memory Controller Control Register 2 00000801h

8408h-840Bh 32 R/W MC_BANK_CFG. Memory Controller Bank Configuration 41104110h

840Ch-840Fh 32 R/W MC_SYNC_TIM1. Memory Controller Synchronous Timing

2A733225h

8414h-8417h 32 R/W MC_GBASE_ADD. Memory Controller Graphics Base

00000000h

Address Register

8418h-841Bh 32 R/W MC_DR_ADD. Memory Controller Dirty RAM Address

00000000h

841Ch-841Fh 32 R/W MC_DR_ACC. Memory Controller Dirty RAM Access

0000000xh

Table 2-2. SC1200/SC1201 Processor Memory Controller Registers

Bit Description

GX_BASE+ 8400h-8403h MC_MEM_CNTRL1 (R/W) Reset Value: 248C0040h

31:30 MDCTL (MD[63:0] Drive Strength). 11 is strongest, 00 is weakest.

29 RSVD (Reserved). Write as 0.

28:27 MABACTL (MA[12:0] and BA[1:0] Drive Strength). 11 is strongest, 00 is weakest.

26 RSVD (Reserved). Write as 0.

25:24 MEMCTL (RASA#, CASA#, WEA#, CS[1:0]#, CKEA, DQM[7:0] Drive Strength). 11 is strongest, 00 is weakest.

23:22 RSVD (Reserved). Write as 0.

21 RSVD (Reserved). Must be written as 0. Wait state on the X-Bus x_data during read cycles - for debug only.

20:18 SDCLKRATE (SDRAM Clock Ratio). Selects SDRAM clock ratio.

000: Reserved 100: ÷ 3.5 001: ÷ 2 101: ÷ 4 010: ÷ 2.5 110: ÷ 4.5 011: ÷ 3 (Default) 111: ÷ 5

Ratio does not take effect until the SDCLKSTRT bit (bit 17 of this register) transitions from 0 to 1.

17 SDCLKSTRT (Start SDCLK). Start operating SDCLK using the new ratio and shift value (selected in bits [20:18] of this reg-

ister).

0: Clear. 1: Enable.

This bit must transition from zero (written to zero) to one (written to one) in order to start SDCLK or to change the shift value.

16:8 RFSHRATE (Refresh Interval). This field determines the number of processor core clocks multiplied by 64 between refresh

cycles to the DRAM. By default, the refresh interval is 00h. Refresh is turned off by default.

7:6 RFSHSTAG (Refresh Staggering). This field determines number of clocks between the RFSH commands to each of the

four banks during refresh cycles:

00: 0 SDRAM clocks 01: 1 SDRAM clocks (Default) 10: 2 SDRAM clocks 11: 4 SDRAM clocks

Staggering is used to help reduce power spikes during refresh by refreshing one bank at a time. If only one bank is installed, this field must be written as 00.

5 2CLKADDR (Two Clock Address Setup). Assert memory address for one extra clock before CS# is asserted.

0: Disable. 1: Enable.

This can be used to compensate for address setup at high frequencies and/or high loads.

18 AMD Geode™ SC1200/SC1201 Processor Data Book

Architecture Overview

32579B

Table 2-2. SC1200/SC1201 Processor Memory Controller Registers (Continued)

Bit Description

4 RFSHTST (Test Refresh). This bit, when set high, generates a refresh request. This bit is only used for testing purposes.

3 XBUSARB (X-Bus Round Robin). When round robin is enabled, processor, graphics pipeline, and low priority display con-

troller requests are arbitrated at the same priority level. When disabled, processor requests are arbitrated at a higher priority level. High priority display controller requests always have the highest arbitration priority.

0: Disable. 1: Enable round robin.

2 SMM_MAP (SMM Region Mapping). Maps the SMM memory region at GX_BASE+400000 to physical address A0000 to

BFFFF in SDRAM.

0: Disable. 1: Enable.

1 RSVD (Reserved). Write as 0.

0 SDRAMPRG (Program SDRAM). When this bit is set, the memory controller will program the SDRAM MRS register using

LTMODE in MC_SYNC_TIM1.

This bit must transition from zero (written to zero) to one (written to one) in order to program the SDRAM devices.

GX_BASE+8404h-8407h MC_MEM_CNTRL2 (R/W) Reset Value: 00000801h

31:14 RSVD (Reserved). Write as 0.

13:12 SDCLKCTL (SDCLK High Drive/Slew Control). Controls the high drive and slew rate of SDCLK[3:0] and SDCLK_OUT.

11 is strongest, 00 is weakest.

11 RSVD (Reserved). Write as 0.

10 SDCLKOMSK# (Enable SDCLK_OUT). Turns on the output.

0: Enable. 1: Disable.

9 SDCLK3MSK# (Enable SDCLK3). Turns on the output.

0: Enable. 1: Disable.

8 SDCLK2MSK# (Enable SDCLK2). Turns on the output.

0: Enable. 1: Disable.

7 SDCLK1MSK# (Enable SDCLK1). Turns on the output.

0: Enable. 1: Disable.

6 SDCLK0MSK# (Enable SDCLK0). Turns on the output.

0: Enable. 1: Disable.

5:3 SHFTSDCLK (Shift SDCLK). This function allows shifting SDCLK to meet SDRAM setup and hold time requirements. The

shift function will not take effect until the SDCLKSTRT bit (bit 17 of MC_MEM_CNTRL1) transitions from 0 to 1:

000: No shift 100: Shift 2 core clocks 001: Shift 0.5 core clock 101: Shift 2.5 core clocks 010: Shift 1 core clock 110: Shift 3 core clocks 011: Shift 1.5 core clock 111: Reserved

2 RSVD (Reserved). Write as 0.

1 RD (Read Data Phase). Selects if read data is latched one or two core clock after the rising edge of SDCLK.

0: 1 Core clock. 1: 2 Core clocks.

0 FSTRDMSK (Fast Read Mask). Do not allow core reads to bypass the request FIFO.

0: Disable. 1: Enable.

AMD Geode™ SC1200/SC1201 Processor Data Book 19

32579B

Architecture Overview

Table 2-2. SC1200/SC1201 Processor Memory Controller Registers (Continued)

Bit Description

GX_BASE+8408h-840Bh MC_BANK_CFG (R/W) Reset Value: 41104110h

31:16 RSVD (Reserved). Write as 0070h

15 RSVD (Reserved). Write as 0.

14 SODIMM_MOD_BNK (SODIMM Module Banks - Banks 0 and 1). Selects number of module banks installed per SODIMM

for SODIMM:

0: 1 Module bank (Bank 0 only) 1: 2 Module banks (Bank 0 and 1)

13 RSVD (Reserved). Write as 0.

12 SODIMM_COMP_BNK (SODIMM Component Banks - Banks 0 and 1). Selects the number of component banks per

module bank for SODIMM:

0: 2 Component banks 1: 4 Component banks

Banks 0 and 1 must have the same number of component banks.

11 RSVD (Reserved). Write as 0.

10:8 SODIMM_SZ (SODIMM Size - Banks 0 and 1). Selects the size of SODIMM:

000: 4 MB 010: 16 MB 100: 64 MB 110: 256 MB 001: 8 MB 011: 32 MB 101: 128 MB 111: 512 MB

This size is the total of both banks 0 and 1. Also, banks 0 and 1 must be the same size.

7 RSVD (Reserved). Write as 0.

6:4 SODIMM_PG_SZ (SODIMM Page Size - Banks 0 and 1). Selects the page size of SODIMM:

000: 1 KB 010: 4 KB 1xx: 16 KB 001: 2 KB 011: 8 KB 111: SODIMM not installed

Both banks 0 and 1 must have the same page size.

3:0 RSVD (Reserved). Write as 0.

GX_BASE+840Ch-840Fh MC_SYNC_TIM1 (R/W) Reset Value: 2A733225h

31 RSVD (Reserved). Write as 0.

30:28 LTMODE (CAS Latency). CAS latency is the delay, in SDRAM clock cycles, between the registration of a read command

27:24 RC (RFSH to RFSH/ACT Command Period, tRC). Minimum number of SDRAM clock between RFSH and RFSH/ACT

23:20 RAS (ACT to PRE Command Period, tRAS). Minimum number of SDRAM clocks between ACT and PRE commands:

18:16 RP (PRE to ACT Command Period, tRP). Minimum number of SDRAM clocks between PRE and ACT commands:

14:12 RCD (Delay Time ACT to READ/WRT Command, tRCD). Minimum number of SDRAM clock between ACT and READ/

and the availability of the first piece of output data. This parameter significantly affects system performance. Optimal setting should be used. If an SODIMM is used, BIOS can interrogate EEPROM across the ACCESS.bus interface to determine this value:

000: Reserved 010: 2 CLK 100: 4 CLK 110: 6 CLK 001: Reserved 011: 3 CLK 101: 5 CLK 111: 7 CLK

This field will not take effect until SDRAMPRG (bit 0 of MC_MEM_CNTRL1) transitions from 0 to 1.

commands:

0000: Reserved 0100: 5 CLK 1000: 9 CLK 1100: 13 CLK 0001: 2 CLK 0101: 6 CLK 1001: 10 CLK 1101: 14 CLK 0010: 3 CLK 0110: 7 CLK 1010: 11 CLK 1110: 15 CLK 0011: 4 CLK 0111: 8 CLK 1011: 12 CLK 1111: 16 CLK

19 RSVD (Reserved). Write as 0.

000: Reserved 010: 2 CLK 100: 4 CLK 110: 6 CLK 001: 1 CLK 011: 3 CLK 101: 5 CLK 111: 7 CLK

15 RSVD (Reserved). Write as 0.

WRT commands. This parameter significantly affects system performance. Optimal setting should be used:

000: Reserved 010: 2 CLK 100: 4 CLK 110: 6 CLK 001: 1 CLK 011: 3 CLK 101: 5 CLK 111: 7 CLK

20 AMD Geode™ SC1200/SC1201 Processor Data Book

Architecture Overview

32579B

Table 2-2. SC1200/SC1201 Processor Memory Controller Registers (Continued)

Bit Description

11 RSVD (Reserved). Write as 0.

10:8 RRD (ACT(0) to ACT(1) Command Period, tRRD). Minimum number of SDRAM clocks between ACT and ACT command

to two different component banks within the same module bank. The memory controller does not perform back-to-back Activate commands to two different component banks without a READ or WRITE command between them. Hence, this field should be written as 001.

7 RSVD (Reserved). Write as 0.

6:4 DPL (Data-in to PRE Command Period, tDPL). Minimum number of SDRAM clocks from the time the last write datum is

3:0 RSVD (Reserved). Leave unchanged. Always returns a 101h.

Note: Refer to the SDRAM manufacturer’s specification for more information on component banks.

GX_BASE+8414h-8417h MC_GBASE_ADD (R/W) Reset Value: 00000000h

31:18 RSVD (Reserved). Write as 0.

15:12 SEL (Select). This field is used for debug purposes only and should be left at zero for normal operation.

10:0 GBADD (Graphics Base Address). This field indicates the graphics memory base address, which is programmable on 512

GX_BASE+8418h-841Bh MC_DR_ADD (R/W) Reset Value: 00000000h

31:10 RSVD (Reserved). Write as 0.

9:0 DRADD (Dirty RAM Address). This field is the address index that is used to access the Dirty RAM with the MC_DR_ACC

GX_BASE+841Ch-841Fh MC_DR_ACC (R/W) Reset Value: 0000000xh

31:2 RSVD (Reserved). Write as 0.

sampled till the bank is precharged:

000: Reserved 010: 2 CLK 100: 4 CLK 110: 6 CLK 001: 1 CLK 011: 3 CLK 101: 5 CLK 111: 7 CLK

17 TE (Test Enable TEST[3:0]).

0: TEST[3:0] are driven low (normal operation). 1: TEST[3:0] pins are used to output test information

16 TECTL (Test Enable Shared Control Pins).

0: RASB#, CASB#, CKEB, WEB# (normal operation). 1: RASB#, CASB#, CKEB, WEB# are used to output test information

11 RSVD (Reserved). Write as 0.

KB boundaries. This field corresponds to address bits [29:19].

Note that BC_DRAM_TOP must be set to a value lower than the Graphics Base Address.

1 D (Dirty Bit). This bit is read/write accessible.

0 V (Valid Bit). This bit is read/write accessible.

AMD Geode™ SC1200/SC1201 Processor Data Book 21

32579B

Architecture Overview

2.1.2 Fast-PCI Bus

The GX1 module communicates with the Core Logic module via a Fast-PCI bus that can work at up to 66 MHz. The Fast-PCI bus is internal for the SC1200/SC1201 processor and is connected to the General Configuration Block (see Section 4.0 on page 71 for details on the General Configuration Block).

This bus supports seven bus masters. The requests (REQs) are fixed in priority. The seven bus masters in order of priority are:

1) VIP

2) IDE Channel 0

3) IDE Channel 1

4) Audio

5) USB

6) External REQ0#

7) External REQ1#

2.1.3 Display

The GX1 module generates display timing, and controls internal signals CRT_VSYNC and CRT_HSYNC of the Video Processor module.

The GX1 module interfaces with the Video Processor via a video data bus and a graphics data bus.

• Video data. The GX1 module uses the core clock, divided by 2 or 4 (typically 100 to 133 MHz). It drives the video data using this clock. Internal signals VID_VAL and VID_RDY are used as data-flow handshake signals between the GX1 module and the Video Processor.

• Graphics data. The GX1 module uses the internal DCLK signal, supplied by the PLL of the Video Processor, to drive the 18-bit graphics-data bus of the Video Processor. Each six bits of this bus define a different color. Each of these 6-bit color definitions is expanded (by adding two zero LSB lines) to form an 8-bit bus, at the Video Processor.

For more information about the GX1 module’s interface to the Video Processor, see the “Display Controller” chapter in the AMD Geode™ GX1 Processor Data Book.

2.2.1 GX1 Module Interface

The Video Processor is connected to the GX1 module in the following way:

• The Video Processor’s DOTCLK output signal is used as the GX1 module’s DCLK input signal.

• The GX1 module’s PCLK output signal is used as the GFXCLK input signal of the Video Processor.

2.2.2 Video Input Port

The Video Input Port (VIP) within the Video Processor contains a standard interface that is typically connected to a media processor or TV encoder. The clock is supplied by the externally connected device; typically at 27 MHz.

Video input can be sent to the GX1 module’s video frame buffer (Capture Video mode) or can be used directly (Direct Video mode).

2.2.3 Core Logic Module Interface

The Video Processor interfaces to the Core Logic module for accessing PCI function configuration registers.

2.2.4 CRT DAC

The Video Processor drives three CRT DACs with up to 135M pixels per second.

The interface for these DACs can be monitored via external balls of the SC1200/SC1201 processor. For more information, see Section 3.4.4 "CRT/TFT Interface Signals" on page 52.

2.3 Core Logic Module

The Core Logic module is described in detail in Section 6.0 on page 141.

The Core Logic module is connected to the Fast-PCI bus. It uses signal AD28 as the IDSEL for all PCI configuration functions except for USB which uses AD29.

2.3.1 Other Core Logic Module Interfaces

The following interfaces of the Core Logic module are implemented via external signals of the SC1200/SC1201 processor. Each interface is listed below with a reference to the descriptions of the relevant signals.

2.2 Video Processor Module

The Video Processor provides high resolution and graphics for a CRT, TV, or TFT/DSTN interface. The following subsections provide a summary of how the Video Processor interfaces with the other modules of the SC1200/SC1201 processor. For detailed information about the Video Processor, see Section 7.0 on page 311.

22 AMD Geode™ SC1200/SC1201 Processor Data Book

• IDE: See Section 3.4.10 "IDE Interface Signals" on page

61.

• AC97: See Section 3.4.15 "AC97 Audio Interface Signals" on page 65.

• PCI: See Section 3.4.7 "PCI Bus Interface Signals" on page 55.

Architecture Overview

32579B

• USB: See Section 6.2.4 "Universal Serial Bus" on page

147. The USB function uses signal AD29 as the IDSEL for PCI configuration.

• LPC: See Section 3.4.9 "Low Pin Count (LPC) Bus Interface Signals" on page 60.

• Sub-ISA: See Section 3.4.8 "Sub-ISA Interface Signals" on page 59, Section 6.2.5 "Sub-ISA Bus Interface" on page 147, and Section 4.2 "Pin Multiplexing, Interrupt Selection, and Base Address Registers" on page 72

• GPIO: See Section 3.4.17 "GPIO Interface Signals" on page 67.

More detailed information about each of these interfaces is provided in Section 6.2 "Module Architecture" on page 142.

• Super/IO Block Interfaces: See Section 4.2 "Pin Multiplexing, Interrupt Selection, and Base Address Registers" on page 72, Section 3.4.6 "ACCESS.bus Interface Signals" on page 55, Section 3.4.14 "Fast Infrared (IR) Port Interface Signals" on page 64, and Section 3.4.13 "Parallel Port Interface Signals" on page 63.

The Core Logic module interface to the GX1 module consists of seven miscellaneous connections, the PCI bus interface signals, plus the display controller connections. Note that the PC/AT legacy signals NMI, WM_RST, and A20M are all virtual functions executed in SMM (System Management Mode) by the BIOS.

• PSERIAL is a one-way serial bus from the GX1 to the Core Logic module used to communicate powermanagement states and VSYNC information for VGA emulation.

• IRQ13 is an input from the processor indicating that a floating point error was detected and that INTR should be asserted.

• INTR is the level output from the integrated 8259A PICs and is asserted if an unmasked interrupt request (IRQn) is sampled active.

• SMI# is a level-sensitive interrupt to the GX1 that can be configured to assert on a number of different system events. After an SMI# assertion, SMM is entered and program execution begins at the base of the SMM address space. Once asserted, SMI# remains active until the SMI source is cleared.

• SUSP# and SUSPA# are handshake signals for implementing CPU Clock Stop and clock throttling.

• CPU_RST resets the CPU and is asserted for approximately 100 µs after the negation of POR#.

• PCI bus interface signals.

2.4 SuperI/O Module

The SuperI/O (SIO) module is a PC98 and ACPI compliant SIO that offers a single-cell solution to the most commonly used ISA peripherals.

The SIO module incorporates: two Serial Ports, an Infrared Communication Port that supports FIR, MIR, HP-SIR, Sharp-IR, and Consumer Electronics-IR, a full IEEE 1284 Parallel Port, two ACCESS.bus Interface (ACB) ports, System Wakeup Control (SWC), and a Real-Time Clock (RTC) that provides RTC timekeeping.

2.5 Clock, Timers, and Reset Logic

In addition to the four main modules (i.e., GX1, Core Logic, Video Processor and SIO) that make up the SC1200/ SC1201 processor, the following blocks of logic have also been integrated:

• Clock Generators as described in Section 4.5 "Clock Generators and PLLs" on page 83.

• Configuration Registers as described in Section 4.2 "Pin Multiplexing, Interrupt Selection, and Base Address Registers" on page 72.

• A WATCHDOG timer as described in Section 4.3 "WATCHDOG" on page 79.

• A High-Resolution timer as described in Section 4.4 "High-Resolution Timer" on page 81.

2.5.1 Reset Logic

This section provides a description of the reset flow of the SC1200/SC1201 processor.

2.5.1.1 Power-On Reset

Power-on reset (POR) is triggered by assertion of the POR# signal. Upon power-on reset, the following things happen:

• Strap balls are sampled.

• PLL4, PLL5, and PLL6 are reset, disabling their output.

When the POR# signal is negated, the clocks lock and then each PLL outputs its clock. PLL6 is the last clock generator to output a clock. See Section 4.5 "Clock Generators and PLLs" on page 83.

• Certain WATCHDOG and High-Resolution Timer register bits are cleared.

2.5.1.2 System Reset

System reset causes signal PCIRST# to be issued, thus triggering a reset of all PCI and LPC agents. A system reset is triggered by any of the following events:

• Power-on, as indicated by POR# signal assertion.

• A WATCHDOG reset event (see Section 4.3.2

"WATCHDOG Registers" on page 80).

• Software initiated system reset.

AMD Geode™ SC1200/SC1201 Processor Data Book 23

32579B

Architecture Overview

24 AMD Geode™ SC1200/SC1201 Processor Data Book

Signal Definitions 32579B

3.0Signal Definitions

This section defines the signals and describes the external interface of the SC1200/SC1201 processor. Figure 2-1 shows the signals organized by their functional groups. Where signals are multiplexed, the default signal name is

POR# X32I X32O X27I

System

Interface

Memory

Interface

ACCESS.bus

Interface

Parallel Port/

TFT/VOP Interface

X27O PCIRST# BOOT16+ROMCS# LPC_ROM+PCICLK1 TFT_PRSNT+SDATA_OUT FPCI_MON+PCICLK0 DID0+GNT0#, DID1+GNT1#

MD[63:0] MA[12:0] BA[1:0] CS[1:0]# RASA# CASA# WEA# DQM[7:0] CKEA SDCLK[3:0] SDCLK_IN SDCLK_OUT

AB1C+GPIO20+DOCCS# AB1D+GPIO1+IOCS1# GPIO12+AB2C GPIO13+AB2D

ACK#+TFTDE+VOPCK AFD#/DSTRB#+TFTD2+VOPD1 BUSY/WAIT#+TFTD3+VOPD2 ERR#+TFTD4+VOPD3 INIT#+TFTD5+VOPD4 PD7+TFTD13 PD6+TFTD1+VOPD0 PD[5:0]+TFTD[11:6]+VOPD[7:5] PE+TFTD14 SLCT+TFTD15 SLIN#/ASTRB#+TFTD16 STB#/WRITE#+TFTD17

AMD Geode™

SC1200/SC1201

Processor

listed first and is separated by a plus sign (+). A slash (/) in a signal name means that the function is always enabled and available (i.e., cycle multiplexed).

CVBS+Cr+TVB

SVY+Cb+TVR+CVBS

SVC+Cr+Cb+TVB+TVR

CVBS+Y+TVG

TVCOMP

TVRSET

TVREF

TVIOM

Straps

HSYNC VSYNC

VREF

SETRES

RED, GREEN, BLUE

IDE_ADDR2+TFTD4 IDE_ADDR1+TFTD2 IDE_ADDR0+TFTD3

IDE_DATA15+TFTD7

IDE_DATA14+TFTD17 IDE_DATA13+TFTD15 IDE_DATA12+TFTD13 IDE_DATA11+GPIO41

IDE_DATA10+DDC_SCL

IDE_DATA9+DDC_SDA

IDE_DATA8+GPIO40

IDE_DATA7+INTD#

IDE_DATA6+IRQ9

IDE_DATA5+CLK27M

IDE_DATA4+FP_VDD_ON

IDE_DATA3+TFTD12 IDE_DATA2+TFTD14 IDE_DATA1+TFTD16

IDE_DATA0+TFTD6

IDE_IOR0#+TFTD10

IDE_IOW0#+TFTD9

IDE_CS0#+TFTD5

IDE_CS1#+TFTDE

IDE_IORDY0+TFTD11

IDE_DREQ0+TFTD8

IDE_DACK0#+TFTD0

IDE_RST#+TFTDCK

IRQ14+TFTD1

TV Interface

CRT Interface

IDE/TFT Interface

Video Port

Interface

Note: Straps are not the default signal, shown with system signals for reader convenience. However, also listed in figure with the

appropriate functional group.

VPD[7:0] VPCKIN

Figure 3-1. Signal Groups

AMD Geode™ SC1200/SC1201 Processor Data Book 25

32579B

Signal Definitions

USB

Interface

Serial Ports

(UARTs)/IDE

Interface

IR Port

Interface

AC97 Audio

Interface

Power

Management

Interface

JTAG

Interface

POWER_EN OVER _CUR# DPOS_PORT1 DNEG_PORT1 DPOS_PORT2 DNEG_PORT2 DPOS_PORT3 DNEG_PORT3

SIN1 SIN2+SDTEST3 SOUT1+CLKSEL1 SOUT2+CLKSEL2 GPIO7+RTS2#+IDE_DACK1#+SDTEST0 GPIO8+CTS2#+IDE_DREQ1+SDTEST4 GPIO18+DTR1#/BOUT1 GPIO6+DTR2#/BOUT2+IDE_IOR1#+SDTEST5 GPIO11+RI2#+IRQ15 GPIO9+DCD2#+IDE_IOW1#+SDTEST2 GPIO10+DSR2#+IDE_IORDY1+SDTEST1

IRRX1+SIN3 IRTX+SOUT3

BIT_CLK SDATA_OUT+TFT_PRSNT SDATA_IN SDATA_IN2 SYNC+CLKSEL3 AC97_CLK AC97_RST# GPIO16+PC_BEEP

CLK32 GPWIO[2:0] LED# ONCTL# PWRBTN# PWRCNT[1:2] THRM#

TCK TDI TDO TMS TRST#

AMD Geode™

SC1200/SC1201

Processor

GPIO17+TFTDCK+IOCS0#

GPIO20+DOCCS#+TFTD0

GPIO15+DOCW#+IOW#

GPIO19+INTC#+IOCHRDY

GPIO38+IRRX2+LPCPD

TEST3+GXCLK+FP_VDD_ON

PCICLK0+FPCI_MON

PCICLK1+LPC_ROM

PCICLK

INTA#, INTB#

FRAME#

LOCK# PERR# SERR#

REQ[1:0]# GNT0#+DID0 GNT1#+DID1

A[23:0]/AD[23:0] D[7:0]/AD[31:24]

D[11:8]/C/BE[3:0]#

D12/PAR

D13/TRDY#

D14/IRDY#

D15/STOP#

BHE#/DEVSEL#

GPIO1+IOCS1+TFTD12

ROMCS#/BOOT16

RD#+CLKSEL0

WR#

GPIO14+DOCR#+IOR#

GPIO0+TRDE#

GPIO32+LAD0 GPIO33+LAD1 GPIO34+LAD2 GPIO35+LAD3

GPIO36+LDRQ#

GPIO37+LFRAME#

GPIO39+SERIRQ

TEST1+PLL6B TEST0+PLL2B

TEST2+PLL5B

GTEST

TDP, TDN

Sub-ISA/PCI Bus Interface

GPIO/LPC Bus Interface

Test and Measurement Interface

Figure 3-1. Signal Groups (Continued)

The remaining subsections of this chapter describe:

• Section 3.1 "Ball Assignments": Provides a ball assignment diagram and tables listing the signals sorted according to ball number and alphabetically by signal name.

• Section 3.2 "Strap Options": Several balls are read at power-up that set up the state of the SC1200/SC1201 processor. This section provides details regarding those balls.

26 AMD Geode™ SC1200/SC1201 Processor Data Book

• Section 3.3 "Multiplexing Configuration": Lists multi-

plexing options and their configurations.

• Section 3.4 "Signal Descriptions": Detailed descriptions of each signal according to functional group.

Signal Definitions

3.1 Ball Assignments

The SC1200/SC1201 processor is highly configurable as illustrated in Figure 3-1 on page 25. Strap options and register programming are used to set various modes of operation and specific signals on specific balls. This section describes which signals are available on which balls and provides configuration information:

• Figure 3-2 on page 28: Illustrates the BGU481 ball assignments.

• Table 3-2 on page 29: Lists signals according to ball number. Power Rail, Signal Type, Buffer Type and, where relevant, Pull-Up or Pull-Down resistors are indicated for each ball in this table. For multiplexed balls, the necessary configuration for each signal is listed as well.

• Table 3-3 on page 40: Quick reference signal list sorted alphabetically - listing all signal names and ball numbers.

The tables in this chapter use several common abbreviations. Table 3-1 lists the mnemonics and their meanings

Notes:

1) For each GPIO signal, there is an optional pull-up

resistor on the relevant ball. After system reset, the pull-up is present.

This pull-up resistor can be disabled via registers in the Core Logic module. The configuration is without regard to the selected ball function (except for GPIO12, GPIO13, and GPIO16). Alternate functions for GPIO12, GPIO13, and GPIO16 control pull-up resistors.

For more information, see Section 6.4.1 "Bridge, GPIO, and LPC Registers - Function 0" on page 190.

2) Configuration settings listed in this table are with

regard to the Pin Multiplexing Register (PMR). See Section 4.2 "Pin Multiplexing, Interrupt Selection, and Base Address Registers" on page 72 for a detailed description of this register.

32579B

Table 3-1. Signal Definitions Legend

Mnemonic Definition

A Analog

GCB General Configuration Block registers.

I Input ball

I/O Bidirectional ball

MCR[x] Miscellaneous Configuration Register

O Output ball

OD Open-drain PD Pull-down (KΩ)

PMR[x] Pin Multiplexing Register Bit x: A regis-

PU Pull-up (KΩ)

TS TRI-STATE

CORE

# The # symbol in a signal name indicates

/ A / in a signal name indicates both func-

+ A + in signal name indicates the function

Ground ball: Analog

Power ball: Analog

Refer to Section 4.0 "General Configuration Block" on page 71.

Location of the General Configuration Block cannot be determined by software. See AMD Geode™ SC1200/SC1201

Processor Specification Update document.

Bit x: A register, located in the GCB. Refer to Section 4.1 "Configuration Block Addresses" on page 71 for further details.

ter, located in the GCB, used to configure balls with multiple functions. Refer to Section 4.1 "Configuration Block Addresses" on page 71 for further details.

Power ball: 1.2V

Power ball: 3.3V

Ground ball

that the active or asserted state occurs when the signal is at a low voltage level. Otherwise, the signal is asserted when at a high voltage level.

tions are always enabled (i.e., cycle multiplexed).

is available on the ball, but that either strapping options or register programming is required to select the desired function.

AMD Geode™ SC1200/SC1201 Processor Data Book 27

32579B

Signal Definitions

12345678910111213141516171819202122232425262728293031

VSSVIOAD30 PCK0 REQ1# PRST# PCICK IOW# GP20 GP17 HSNC AV

VSSVIOAD29 AD28 REQ0# AD23 VSSRD# WR# VSSVSNC RED VIOAV

AD26 AD24 VIOAD25 GNT0# GNT1# VIORMCS# GP19 VIOIRTX V

AD21 AD22 AD20 AD27 AD31 PCK1 V

AD16 AD19 AD18 DVSL# SIN2 TRST# TDO TCK

TRDY# IRDY# CBE2# AD17

STOP# V

SRR# PRR# LOCK# CBE3#

AD13 CBE1# AD15 PAR

AD11 V

CBE0# AD9 AD10 A D12

AD7 VIOAD8

AD3 AD6 AD5 V

AD4 ICS1# AD1 V

SSVSSVSSVSS

COREVCOREVCOREVCORE

AD0 IAD2 AD2 V

IDAT15 IDAT14 IDAT13 V

VIOVSSIDAT12 IDAT11

IDAT10 IDAT9 IDAT8 IIOR0#

IRST# IDAT7 IDAT6 IDAT5

IDAT4 V

IDAT1 IDAT2 IDAT0 IDRQ0

IIORY0 IIOW0# IAD0 IDACK0#

IAD1 V

IRQ14 ICS0# SOUT1 OVRCUR#

GP18 SIN1 X27I TEST1

PWRE X27O TEST0 V

TEST2 X32I X32O V

IOVSSAVSSP3

VSSVIOV

SSS

FRM# IOR# GP1 TRDE# V

SSVIOVSS

AD14 GP38 VIOVSSGP37

IOVSS

CORE

AMD Geode™

GREEN BLUE VSSV

CCCTVSS

STRES VIOBUSY ACK# VIOSLIN# INIT# VSSTVIOM AV

SSCT

SSCTAVCCCTAVSSCTAVSSCTAVSSP2

CCCTVSSVIOAVCCCT

COREVCOREVSSVSSVSSVCOREVCORE

VSSVSSVSSVSSVSSVSSV

COREVCOREVSSVSSVSSVCOREVCORE

PLL2

SLCT PD4 PD5 PD3 PD0 VIOSVC TVREF VIOINTB# AV

VREF PE VIOVSSPD2 ERR# AFD# AV

PD7 VSSPD6 PD1 STB# CVBS SVY TVRST D+P3 D-P3 D+P1 D-P1 VIOV

TVCMPD+P2D-P2GP10 VSSV

SSTVVSS

SSUSB

CVBS VSSINTA# AV

CCTV

CCUSB

SC1200/SC1201

IDAT3

SSVIO

Processor

SSVIOVSS

PBTN# GPW0 VSSCK32 POR# MD3 MD5 WEA# VSSVIOMA1 MD34 MD37 VIOVSSMD41 MA9 MA8 DQM1 MD13 VSSMA11 CS1# MD18 MD48 MD20 MD51

ONCT# GPW2 VIOGP11 MD0 VIOMD6 CASA# BA0 MA10 MD32 MD33 MD36 MD47 MD45 MD42 SDCK0 VIOMA6 MA3 VIOMD11 SDCKI MD19 VIOMD22 MD17

PLL3

THRM#GPW1 PCNT1 VSSIRRX1 MD1 VSSMD7 RASA# VIOBA1 MA2 VIOMD35 MD46 VIOMD43 DQM5 VSSMA5 MD15 VSSMD14 MD12 SDCKO MD16 VSSV

LED# VSBV

BAT

PCNT2 SDATI2 MD2 MD4 DQM0 CS0# VSSMA0 DQM4 VSSMD38 MD39 VSSMD44 MD40 CKEA MA7 MA4 MD8 MD10 MD9 MA12 MD23 VIOV

SBL

(Top View)

GP9 VIOGP7 GP8

GP6 SOUT TDP TDN

TMS TDI GTST VPCKI

VSSVIOVSSVPD7

VPD6 VPD5 VPD4 VPD3

VPD2 VPD1 VPD0 GP39

GP36 GP35 GP34 GP33

GP32 GP13 V

VSSGP12 AB1D AB1C

CORE

SSVSSVSSVSS

COREVCOREVCOREVCORE

ACRST# BITCK SDI

CORE

SDCK3 GXCK GP16

MD57 SDCK1 V

MD58 MD59 MD60 MD56

SDCK2 MD61 MD62 MD63

MD24 V

MD25 MD26 MD27 DQM3

MD52 MD29 MD30 MD31

SSVIOVSS

MD50 MD49 MD54 MD53

MD21 DQM6 DQM2 MD55

12345678910111213141516171819202122232425262728293031

Note: Signal names have been abbreviated in this figure due to space constraints.

= GND Ball = PWR Ball

= Strap Option Ball = Multiplexed Ball

IOVSS

SDO SYNC ACCK

SSVIO

DQM7

IOVSS

MD28

Figure 3-2. BGU481 Ball Assignment Diagram

28 AMD Geode™ SC1200/SC1201 Processor Data Book

Signal Definitions

Table 3-2. BGU481 Ball Assignment - Sorted by Ball Number

Ball No. Signal Name

A1 V

A2 V

I/O

(PU/PD)

Buffer

GND --- --- ---

PWR --- --- ---

A3 AD30 I/O IN

D6 I/O IN

A4 PCICLK0 O O

FPCI_MON I

(PD

100

)

A5 REQ1# I

(PU

)

22.5

A6 PCIRST# O O

A7 PCICLK I IN

A8 IOW# O O

DOCW# O O

GPIO15 I/O

A9 GPIO20 I/O

(PU

22.5

)

DOCCS# O

)

(PU

22.5

TFTD0 O

(PU

22.5

)

A10 GPIO17 I/O

)

(PU

22.5

IOCS0# O

(PU

22.5

)

TFTDCK O

)

(PU

22.5

A11 HSYNC O O

A12 AV

A13 V

CCCRT

PWR --- --- ---

GND --- --- ---

A14 GREEN O WIRE AV

A15 BLUE O WIRE AV

A16 V

A17 V

PLL2

GND --- --- ---

PWR --- --- ---

Typ e

STRP

, O

PCI

3/5

3/5VIO

3/5

1/4

3/5

1/4

Power

Rail Configuration

VIOCycle Multiplexed

VIO---

Strap (See Table 34 on page 44.)

VIO---

VIOPMR[21] = 0 and

PMR[2] = 0

PMR[21] = 0 and PMR[2] = 1

PMR[21] = 1 and PMR[2] = 1

(PMR[23]3 = 0 and PMR[7] = 0) or

(PMR[23] PMR[15] = 1 and PMR[7] = 0)

= 1 and

(PMR[23]3 = 0 and PMR[7] = 1) or

(PMR[23] PMR[15] = 1 and

= 1 and

PMR[7] = 1)

PMR[23]3 = 1 and PMR[15] = 0

(PMR[23]3 = 0 and PMR[5] = 0) or

(PMR[23] PMR[15] = 1 and

= 1 and

PMR[5] = 0)

(PMR[23]3 = 0 and PMR[5] = 1) or

(PMR[23] PMR[15] = 1 and PMR[5] = 1)

PMR[23]3 = 1 and PMR[15] = 0

= 1 and

VIO---

---

C-

CCRT

---

C-

CCRT

32579B

Ball No. Signal Name

PD7 I/O INT,

A186,

I/O

(PU/PD)

TFTD13 O O

F_AD7 O O

A19 V

A20

6, 2

PD6 I/O INT,

GND --- --- ---

TFTD1 O O

VOPD0 O O

F_AD6 O O

6, 2

PD1 I/O INT,

A21

TFTD7 O O

VOPD6 O O

F_AD1 O O

6, 2

STB#/WRITE# O O

A22

TFTD17 O

F_FRAME# O O

A23 CVBS O WIRE AV

TVG O

A24 SVY O WIRE AV

TVR O

Cb O

CVBS O

A25 TVRSET I WIRE AV

DPOS_PORT3 I/O IN

A26

DNEG_PORT3 I/O IN

A27

Buffer

Typ e

14/14

1/4

14/14

1/4

14/14

1/4

14/14

1/4

14/14

USB

Power

Rail Configuration

PMR[23]3 = 0 and (PMR[27] = 0 and FPCI_MON = 0)

PMR[23]3 = 1 and (PMR[27] = 0 and FPCI_MON = 0)

PMR[23]3 = 0 and (PMR[27] = 1 or FPCI_MON = 1)

PMR[23]3 = 0 and (PMR[27] = 0 and FPCI_MON = 0)

(PMR[23]3 = 1 and PMR[15] = 0) and (PMR[27] = 0 and FPCI_MON = 0

(PMR[23]3 = 1 and PMR[15] = 1) and (PMR[27] = 0 and FPCI_MON = 0)

PMR[23]3 = 0 and (PMR[27] = 1 or FPCI_MON = 1)

PMR[23]3 = 0 and (PMR[27] = 0 and FPCI_MON = 0)

(PMR[23]3 = 1 and PMR[15] = 0) and (PMR[27] = 0 and FPCI_MON = 0)

(PMR[23]3 = 1 and PMR[15] = 1) and (PMR[27] = 0 and FPCI_MON = 0)

PMR[23]3 = 0 and (PMR[27] = 1 or FPCI_MON = 1)

PMR[23]3 = 0 and (PMR[27] = 0 and FPCI_MON = 0)

PMR[23]3 = 1 and (PMR[27] = 0 and FPCI_MON = 0)

PMR[23]3 = 0 and (PMR[27] = 1 or FPCI_MON = 1)

See F4BAR0+

CCTV

Memory Offset C08h[4:3] bit description on page 356.

See F4BAR0+

CCTV

Memory Offset C08h[4:3] bit description on page 356.

---

CCTV

---

C-

CUSB

---

C-

CUSB

AMD Geode™ SC1200/SC1201 Processor Data Book 29

32579B

Table 3-2. BGU481 Ball Assignment - Sorted by Ball Number (Continued)

Ball No. Signal Name

DPOS_PORT1 I/O IN

A28

DNEG_PORT1 I/O IN

A29

A30 V

A31 V

B1 V

B2 V

I/O

(PU/PD)

Buffer

PWR --- --- ---

GND --- --- ---

PWR --- --- ---

B3 AD29 I/O IN

D5 I/O IN

B4 AD28 I/O IN

D4 I/O IN

B5 REQ0# I

(PU

22.5

)

B6 AD23 I/O IN

A23 O O

B7 V

GND --- --- ---

B8 RD# O O

CLKSEL0 I

(PD

100

)

B9 WR# O O

B10 V

GND --- --- ---

B11 VSYNC O O

B12 RED O WIRE AV

B13 V

B14 AV

SSCRT

PWR --- --- ---

GND --- --- ---

B15 SETRES I WIRE AV

B16 V

B17

6, 2

BUSY/WAIT# I IN

PWR --- --- ---

TFTD3 O O

VOPD2 O O

F_C/BE1# O O

Power

Typ e

USB

PCI

INPCI V

PCI

3/5

STRP

3/5

1/4

CUSB

CCRT

Rail Configuration

---

C-

---

C-

VIOCycle Multiplexed

---

VIOCycle Multiplexed

VIO---

Strap (See Table 34 on page 44.)

VIO---

---

C-

---

C-

PMR[23]3 = 0 and (PMR[27] = 0 and FPCI_MON = 0)

(PMR[23]3 = 1 and PMR[15] = 0) and (PMR[27] = 0 and FPCI_MON = 0)

(PMR[23]3 = 1 and PMR[15] = 1) and (PMR[27] = 0 and FPCI_MON = 0)

PMR[23]3 = 0 and (PMR[27] = 1 or FPCI_MON = 1)

Ball No. Signal Name

6, 2

ACK# I IN

B18

TFTDE O O

VOPCK O O

FPCICLK O O

B19 V

B20

6,2

SLIN#/ASTRB# O O

TFTD16 O O

F_IRDY# O O

6,2

INIT# O O

B21

TFTD5 O O

VOPD4 O O

SMI_O O O

B22 V

I/O

(PU/PD)

PWR --- --- ---

GND --- --- ---

Buffer

Typ e

1/4

14/14

1/4

14/14

1/4

14/14

B23 TVIOM O WIRE AV

B24 AV

B25 V

SSTV

GND --- --- ---

B26 TVCOMP I WIRE AV

DPOS_PORT2 I/O IN

B27

DNEG_PORT2 I/O IN

B28

B29 GPIO10 I/O

DSR2# I

(PU

IDE_IORDY1 I

(PU

SDTEST1 O

B30 V

B31 V

(PU

GND --- --- ---

PWR --- --- ---

22.5

USB

)

8/8

)

TS1

)

2/5

)

Signal Definitions

Power

Rail Configuration

PMR[23]3 = 0 and (PMR[27] = 0 and FPCI_MON = 0)

(PMR[23]3 = 1 and PMR[15] = 0) and (PMR[27] = 0 and FPCI_MON = 0)

(PMR[23]3 = 1 and PMR[15] = 1) and (PMR[27] = 0 and FPCI_MON = 0)

PMR[23]3 = 0 and (PMR[27] = 1 or FPCI_MON = 1)

PMR[23]3 = 0 and (PMR[27] = 0 and FPCI_MON = 0)

PMR[23]3 = 1 and (PMR[27] = 0 and FPCI_MON = 0)

PMR[23]3 = 0 and (PMR[27] = 1 or FPCI_MON = 1)

PMR[23]3 = 0 and (PMR[27] = 0 and FPCI_MON = 0)

(PMR[23]3 = 1 and PMR[15] = 0) and (PMR[27] = 0 and FPCI_MON = 0)

(PMR[23]3 = 1 and PMR[15] = 1) and (PMR[27] = 0 and FPCI_MON = 0)

PMR[23]3 = 0 and (PMR[27] = 1 or FPCI_MON = 1)

---

CCTV

---

CCTV

---

C-

CUSB

---

C-

CUSB

VIOPMR[18] = 0 and

PMR[8] = 0

PMR[18] = 1 and PMR[8] = 0

PMR[18] = 0 and PMR[8] = 1

PMR[18] = 1 and PMR[8] = 1

30 AMD Geode™ SC1200/SC1201 Processor Data Book

+ 413 hidden pages