RTC General-Purpose RAM Map 24. Standard RAM Map

SuperI/O Module

32579B

5.5.3.1Usage Hints

1)Read bit 7 of CRD at each system power-up to vali- date the contents of the RTC registers and the CMOS RAM. When this bit is 0, the contents of these regis- ters and the CMOS RAM are questionable. This bit is reset when the backup battery voltage is too low. The voltage level at which this bit is reset is below the min- imum recommended battery voltage, 2.4V. Although the RTC oscillator may function properly and the regis- ter contents may be correct at lower than 2.4V, this bit is reset since correct functionality cannot be guaran- teed. System BIOS may use a checksum method to revalidate the contents of the CMOS-RAM. The check- sum byte should be stored in the same CMOS RAM.

2)Change the backup battery while normal operating power is present, and not in backup mode, to maintain valid time and register information. If a low leakage

capacitor is connected to VBAT, the battery may be changed in backup mode.

3)A rechargeable NiCd battery may be used instead of a non-rechargeable Lithium battery. This is a preferred solution for portable systems, where small size com- ponents is essential.

4)A supercap capacitor may be used instead of the nor- mal Lithium battery. In a portable system usually the

VSB voltage is always present since the power man- agement stops the system before its voltage falls to low. The supercap capacitor in the range of 0.047- 0.47 F should supply the power during the battery replacement.

5.5.4RTC General-Purpose RAM Map

Table 5-24. Standard RAM Map

Index	Description

0Eh - 7Fh	Battery-backed general-purpose 111-
	byte RAM.

Table 5-25. Extended RAM Map

Index	Description

00h - 7Fh	Battery-backed general-purpose 128-
	byte RAM.

AMD Geode™ SC1200/SC1201 Processor Data Book

115

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AMD SC1201, SC1200 manual RTC General-Purpose RAM Map 24. Standard RAM Map, Extended RAM Map, Index Description

Contents

AMD Geode SC1200/SC1201 Processor Data Book Publication ID 32579B Contacts Trademarks Advanced Micro Devices, Inc. All rights reserved Contents Video Processor Module Electrical SpecificationsPackage Specifications Core Logic Module ACCESS.bus Data Transaction Power Supply ConnectionsTypical Battery Configuration Typical Battery Current Normal Operation Mode Fast IR Timing MIR and FIR Diagram 422 Multiword DMA Data Transfer Timing Diagram 405USB Data Signal Rise and Fall Timing Diagram 419 USB EOP Width Timing Diagram 420 427 424425 426 32579B Parallel Port Configuration Register IRCP/SP3 Configuration RegisterSerial Ports 1 and 2 Configuration Register ACB1 and ACB2 Configuration Register 167 Banks 0 and 1 Common Control and Status Registers 118119 166 F3 PCI Header Registers for Audio Configuration Pciusb USB PCI Configuration Register SummaryF0BAR0+I/O Offset Gpio Configuration Registers F2BAR4+I/O Offset IDE Controller Configuration Registers 404 384400 402 SuperI/O General DescriptionVideo Processor Core Logic Video Processor Module FeaturesGeneral Features GX1 Processor Module SuperI/O Module Other FeaturesCore Logic Module Nand Eeprom 32579B Memory Controller GX1 ModuleArchitecture Overview 32579B SC1200/SC1201 Processor Memory Controller Register Summary Width Memory Offset Bits Type Name/Function Reset ValueSC1200/SC1201 Processor Memory Controller Registers MCMEMCNTRL2 R/W Rsvd Reserved. Write as GXBASE+840Ch-840Fh Bit Description GXBASE+8408h-840BhMcbankcfg R/W Rsvd Reserved. Write as 0070h Mcdradd R/W Mcgbaseadd R/WMcdracc R/W Video Input Port Fast-PCI BusDisplay 1 GX1 Module Interface System Reset Clock, Timers, and Reset LogicReset Logic Power-On Reset 32579B Processor Signal Definitions 32579BAMD Geode SC1200/SC1201 Jtag Interface USB Mnemonic Definition Signal Definitions Legend SC1200/SC1201 BGU481 Ball Assignment Sorted by Ball Number Configuration REQ0# GNT0# GPIO7 AFD#/DSTRB# PAR GPIO12 FTRDY# AC1 IDEDATA1 Buffer1 Power Signal Name Ball Buffer Power Signal Name Signal Name Ball No BGU481 Ball Assignment Sorted Alphabetically by Signal Name FC/BE1# B17 F30FC/BE0# D21 C11 MD26 AC29 MD23MD24 MD25 AC28 F31 C24N13, N14, N18 A2, A30, B2, B13 Strap Options Nominal External PU/PD Strap SettingsStrap Options TFT, CRT, PCI, GPIO, System Multiplexing ConfigurationTwo-Signal/Group Multiplexing Default Alternate Ball No Signal Configuration Internal Test ACCESS.busAC97 Fpci Monitoring Three-Signal/Group Multiplexing Gpio UART2 IDE2 Four-Signal/Group Multiplexing Boot ROM is 16 Bits Wide. This strap signal enables Signal DescriptionsSignal Name Ball No Type Description Mux Maximum Core Clock Multiplier. These strap signals Column Address Strobe. RAS#, CAS#, WE# and CKE Memory Interface Signals Video Port Interface Signals 4 CRT/TFT Interface Signals Digital RGB Data to TFT Super Video Chrominance. S-Video chrominance sig TV Interface SignalsCurrent Compensation for TV DAC. a 0.1 µF to 1.2 µF PCI Bus Interface Signals ACCESS.bus Interface Signals INTD# AA2 INTA#INTB# INTC# BHE# STOP#LOCK# DEVSEL# REQ0# PERR#SERR# REQ1# Sub-ISA Interface Signals Low Pin Count LPC Bus Interface Signals IDE Interface Signals Serial Ports UARTs Interface Signals Universal Serial Bus USB Interface Signals Parallel Port Interface Signals Fast Infrared IR Port Interface Signals Serial Bus Synchronization. This bit is asserted to syn 15 AC97 Audio Interface SignalsPower Management Interface Signals General Purpose Wakeup I/Os. These signals each PWRCNT2 AL7 Suspend Power Plane Control 1 and 2. Control signalPWRBTN# AH5 PWRCNT1 AK6 Gpio Interface Signals System Management Interrupt. This is the input to Debug Monitoring Interface SignalsJtag Interface Signals Fast-PCI Bus Monitoring Signals. When enabled, this Thermal Diode Positive / Negative. These signals are for Test and Measurement Interface SignalsPLL6, PLL5 and PLL2 Bypass. These signals are used Memory Internal Test Signals. These signals are used Power and Ground Connections1 Width Offset Bits Configuration Block AddressesGeneral Configuration Block Register Summary General Configuration Block 32579B Fpcimon Ball # Internal Test Signals Name Add’l DependenciesOther Signal Add’l Dependencies PMR27 Ball # IDE Signals CRT, Gpio and TFT Signals Name General Configuration Block Name Add’l Dependencies PP/ACB1/FPCI TFT/VOP Ball # Gpio Signals LPC Signals Name Add’l Dependencies Reserved 32579BGeneral Configuration Block General Configuration Block Offset 38h Interrupt Selection Register Intsel R/W Offset 3Eh-3Fh Configuration Base Address Register CBA ROOffset 3Dh Revision Register REV RO Functional Description Watchdog Timer Usage Hints Watchdog RegistersWatchdog Interrupt 3describes the Watchdog registers Offset 05h-07h High-Resolution TimerHigh-Resolution Timer Registers Watchdog Status Register Wdsts R/WC Reset Value 00h Bit Description Offset 08h-0Bh Reset Value xxxxxxxxhTmclksel Timer Clock Select Tmen Timer Interrupt Enable Clock Generators and PLLs Crystal Oscillator Circuit Components 1 27 MHz Crystal OscillatorComponent Parameters Values Tolerance Strapped Core Clock Frequency 2 GX1 Module Core ClockInternal Fast-PCI Clock Core Clock Frequency Core Logic Module Clocks SuperI/O ClocksVideo Processor Clocks Clock Registers Clock Generator ConfigurationClock generator and PLL registers are described in Table 66.7 MHz 1514Reserved. Must be set to 1110 33.3 MHz ISA Outstanding FeaturesAB1C AB1D AB2C AB2D Serial Port 3 / Infrared IR Communication Port PC98 and Acpi CompliantParallel Port Serial Port Module Architecture AccessSignals Internal Internal Signals LDN Assignments Configuration Structure / AccessSIO Configuration Options Index-Data Register Pair Address Decoding Default Configuration Setup Standard Logical Device Configuration Registers Standard Configuration RegistersSIO Control and Configuration Registers Logical Device Control and Configuration Registers Standard Configuration Registers 32579BSuperI/O Module Index F0h-FEh Logical Device Configuration R/WDMA Channel Select 1 R/W SID. SIO ID SIO Control and Configuration RegistersSIO Control and Configuration Register Map Index Type Name Power Rail Reset Value Relevant RTC Configuration Registers Logical Device Control and Configuration RTC Configuration Registers LDN 01h System Wakeup Control Relevant SWC RegistersBase Address MSB register Relevant IRCP/SP3 Registers 10. IRCP/SP3 Configuration Register LDN 03h and 08h Serial Ports 1 12. Serial Ports 1 and 2 Configuration RegisterSerial Ports 1 and 2 Configuration register 11. Relevant Serial Ports 1 and 2 Registers 13. Relevant ACB1 and ACB2 Registers 14. ACB1 and ACB2 Configuration RegisterLDN 05h and 06h ACCESS.bus Ports 1 ACB1 and ACB2 Configuration register 15. Relevant Parallel Port Registers 16. Parallel Port Configuration Register 17. Crystal Oscillator Circuit Components X32I External X32O Battery = 0.1 μFReal-Time Clock RTC Bus Interface RTC Clock Generation External Oscillator Signal ParametersExternal Elements Oscillator Startup Leap Years AlarmsTimekeeping Data Format Daylight Saving Power Supply 18. System Power States Interrupt Handling Battery-Backed RAMs and Registers110 Index Type Name RTC Registers19. RTC Register Map 20. RTC Registers 112 Index 05h Hours Alarm Register Hora R/WIndex 04h Hours Register HOR R/W CRD is AMD Geode SC1200/SC1201 Processor Data Book 113 Index Programmable Month Alarm Register Mona R/WIndex 0Ch RTC Control Register C CRC RO Index Programmable Century Register CEN R/W Parameter BCD Format Binary Format 21. Divider Chain Control / Test Selection22. Periodic Interrupt Rate Encoding 23. BCD and Binary Formats 25. Extended RAM Map 0Eh 7Fh Battery-backed general-purpose Byte RAM00h 7Fh Battery-backed general-purpose Byte RAM RTC General-Purpose RAM Map 24. Standard RAM Map Event Detection System Wakeup Control SWC26. Time Range Limits for Ceir Protocols Offset Type Name Value SWC Registers27. Banks 0 and 1 Common Control and Status Register Map Type Name Value 29. Banks 0 and 1 Common Control and Status Registers 30. Bank 1 Ceir Wakeup Configuration and Control Registers Ceir Wakeup Range 2 Registers Bit Description Ceir Wakeup Range 1 RegistersBank 1, Offset 0Ah IRWTR1L Register R/W Ceir Pulse Change, Range 1, High Limit AMD Geode SC1200/SC1201 Processor Data Book 121 ACCESS.bus InterfaceData Transactions ABD ABC ABD MSB Acknowledge ACK CycleABC ACK Addressing Transfer Formats Master ModeAcknowledge After Every Byte Rule Arbitration on the Bus Master Stop Sending the Address ByteMaster Transmit Master Receive Configuration Slave Mode 31. ACB Register Map ACB Registers32. ACB Registers MASTER. RO Stop Stop Reserved Inten Interrupt EnableSaen Slave Address Enable EN Enable 34. Parallel Port Register Map for Second Level Offset Legacy Functional BlocksParallel Port 33. Parallel Port Register Map for First Level Offset 36. Parallel Port Bit Map for Second Level Offset 35. Parallel Port Bit Map for First Level Offset130 Type Name Uart Functionality SP1 and SP2 41. Bank 3 Register Map 38. Bank Selection Encoding39. Bank 1 Register Map 40. Bank 2 Register Map Register Bits Offset 42. Bank 0 Bit Map43. Bank 1 Bit Map Register Bits 45. Bank 3 Bit Map 44. Bank 2 Bit Map134 01h Register Throughout Offset 00h All Banks 3.1 IR/SP3 Mode Register Bank Overview46. Bank 0 Register Map IRCP/SP3 Register and Bit Maps BSR Bits Bank Selected Functionality 47. Bank Selection Encoding48. Bank 1 Register Map 49. Bank 2 Register Map 51. Bank 4 Register Map 50. Bank 3 Register Map52. Bank 5 Register Map 54. Bank 7 Register Map 53. Bank 6 Register Map55. Bank 0 Bit Map 59. Bank 4 Bit Map 56. Bank 1 Bit Map57. Bank 2 Bit Map 58. Bank 3 Bit Map 61. Bank 6 Bit Map 60. Bank 5 Bit Map62. Bank 7 Bit Map Feature List Low Pin Count LPC Interface ConfigIntegrated Audio Video Processor Interface Pserial Interface Fast-PCI Interface to External PCI Bus Video Retrace Interrupt IDE Configuration RegistersPIO Mode IDE Controller Physical Region Descriptor Format DMARDY# Strobe Ideiordy UltraDMA/33 Signal DefinitionsUltraDMA/33 Mode Stop Docw Universal Serial BusSub-ISA Bus Interface IOCS0#/IOCS1# AD310 Read AD310 Write Sub-ISA Support of Delayed PCI TransactionsSub-ISA Bus Cycles Fast-PCICLK Sub-ISA Bus Data Steering 5.4 I/O Recovery DelaysREQ# GNT# FRAME# IRDY# TRDY# STOP# Bale ISA RD#, IOR# SD150 ISA DMAAD310 PCI PCI and Sub-ISA Signal Cycle MultiplexingCycle Multiplexed PCI / Sub-ISA Balls ROM Interface DMA Channels FRAME# TRDY#, IRDY#ROMCS#, DOCCS# IOCS0#, IOCS1# PAR DEVSEL#,STOP# DMA Controller DMA Priority DMA Transfer ModesDMA Controller Registers DMA Transfer Types DMA Address Generation Programmable Interval TimerDMA Addressing Capability DMA Page Registers and Extended Addressing Mapping PIC Interrupt MappingProgrammable Interrupt Controller Master PCI Compatible Interrupts PIC Interrupt SequencePIC I/O Registers PIC Shadow Register 7.2 I/O Port 061h System Control Fast Keyboard Gate Address 20 and CPU ResetKeyboard Support 7.1 I/O Port 092h System Control Power Management Logic Wakeup Events Capability Power Planes vs. Sleep/Global States Power Planes Control Signals vs Sleep StatesPower Management Events AMD Geode SC1200/SC1201 Processor Data Book 161 Power ButtonPower Button Override Thermal Monitoring Suspend Modulation Power Management ProgrammingCPU Power Management APM Support Save-to-Disk Volt SuspendAMD Geode SC1200/SC1201 Processor Data Book 163 Acpi Timer Register Peripheral Power ManagementDevice Idle Timers and Traps General Purpose Timers Module Power Management SMI Status Reporting RegistersF1BAR0+I/O F1BAR0+I/O Device Power Management Programming SummaryPower Management Programming Summary Located at F0 Index xxh Unless Otherwise Noted Integrated Audio Gpio Interface Memory Region Base Address 11. Physical Region Descriptor FormatByte Audio Data Buffer Reserved Size PRD3 PRD1 PRD2 Codec Gpio Status and Control Registers Codec Configuration/Control RegistersCodec Command Register 12.2 AC97 Codec Interface Audio SMI Related Registers Trap SMI Enable RegisterVSA Technology Support Hardware VSA Technology Module Core Logic Module LPC Interface IRQ Configuration RegistersInternal IRQ Enable Register Internal IRQ Control Register 12. Cycle Types 13. PCI Configuration Address Register 0CF8h PCI Configuration Space and Access MethodsRegister Descriptions Mats are found Ter’s reset values and page references where the bit forRegister Summary Core Logic module. Included in the tables are the regis AMD Geode SC1200/SC1201 Processor Data Book 177 Width Reset Reference F0 Index Bits 178 32579BCore Logic Module Register Summary F0BAR1+ 15. F0BAR0 Gpio Support Registers Summary16. F0BAR1 LPC Support Registers Summary F0BAR0+ F1BAR0+ 18. F1BAR0 SMI Status Registers Summary 20h PM2CNT PM2 Control Register 00h 21h-FFh Not Used 19. F1BAR1 Acpi Support Registers SummaryF1BAR1+ 00h-03h Pcnt Processor Control Register 182 Width Reset Reference F2 Index Bits F2BAR4+ Width Reset Reference F3 Index Bits21. F2BAR4 IDE Controller Support Registers Summary 22. F3 PCI Header Registers for Audio Support Summary 184 Width Reset23. F3BAR0 Audio Support Registers Summary F3BAR0+ AMD Geode SC1200/SC1201 Processor Data Book 185 Width Reset Reference F5 Index Bits25. F5BAR0 I/O Control Support Registers Summary F5BAR0+ Width Reference Index Bits 26. Pciusb USB PCI Configuration Register SummaryName Reset Value Pciusb USBBAR0 27. Usbbar USB Controller Registers SummaryAMD Geode SC1200/SC1201 Processor Data Book 187 DMA Page Registers Table 28. ISA Legacy I/O Register Summary188 Keyboard Controller Registers Table Programmable Interval Timer Registers TablePort Type Name Reference Programmable Interrupt Controller Registers Table Bridge, GPIO, and LPC Registers Function Chipset Register SpaceGeneral Remarks AMD Geode SC1200/SC1201 Processor Data Book 191 Core Logic Module Bridge, GPIO, and LPC Registers FunctionData Parity Detected. This bit is set when Index 09h-0Bh 316 Gpio Base Address Index 0Eh PCI Header Type RO Reset Value 80hSlave response Index 0Fh PCI Bist Register RO AMD Geode SC1200/SC1201 Processor Data Book 193 PCI Subtractive Decode 194 Reset Control Register R/W Reset Value 01hIndex 42h Index 43h AMD Geode SC1200/SC1201 Processor Data Book 195 Index 45hIndex 46h Index 47h PIT Counter 0 Enable Reset Value 7BhPIT Software Reset PIT Counter 1 Enable Generate SMI on A20M# Toggle ROM/AT Logic Control Register R/W Reset Value 98hAMD Geode SC1200/SC1201 Processor Data Book 197 198 Bit Description Index 54h-59hIndex 5Ah Index 5Bh Decode Control Register 2 R/W INTC# Ball C9 Target Interrupt INTB# Ball C26 Target InterruptINTA# Ball D26 Target Interrupt INTD# Ball AA2 Target Interrupt Index 72h 150200 Chip Select 0 Positive Decode IOCS0# Index 73hIndex 74h-75h Index 76h 202 Ing the upper 19 bits of the incoming PCI address AD3113 Timer expires Disable Enable Power Management Enable Register 2 R/W Reset Value 00hAMD Geode SC1200/SC1201 Processor Data Book 203 204 AMD Geode SC1200/SC1201 Processor Data Book 205 Power Management Enable Register 3 R/W Reset Value 00hKeyboard/Mouse Access Trap Parallel/Serial Access Trap 206 Floppy Disk Access TrapPrimary Hard Disk Access Trap Index 83h Power Management Enable Register 4 R/W AMD Geode SC1200/SC1201 Processor Data Book 207 Index 84h Second Level PME/SMI Status Mirror Register 1 RO 208 AMD Geode SC1200/SC1201 Processor Data Book 209 Reserved. Always reads Index 88h General Purpose Timer 1 Count Register R/W210 Second Millisecond Re-trigger General Purpose Timer 1 on Floppy Disk ActivityAMD Geode SC1200/SC1201 Processor Data Book 211 Index 8Dh Video Speedup Timer Count Register R/W Index 8Bh General Purpose Timer 2 Control Register R/W212 Index 93h Index 8Fh-92hAMD Geode SC1200/SC1201 Processor Data Book 213 214 Index 9Ah-9Bh Floppy Disk Idle Timer Count Register R/WIndex 97h Index 98h-99h Index A8h-A9h Video Overflow Count Register R/W Index A6h-A7h Video Idle Timer Count Register R/W Index B4h Index AEh CPU Suspend Command Register WOIndex AFh Suspend Notebook Command Register WO Index B0h-B3h Index BAh PIT Shadow Register RO Index B9h PIC Shadow Register ROAMD Geode SC1200/SC1201 Processor Data Book 217 Index C0h-C3h Index BCh Clock Stop Control Register R/W Reset Value 00hReserved. Set to CPU Clock Stop Index BDh-BFh Index CEh Bit Description Index CChMask Index CDh 220 Index EDh-F3hIndex F4h Index F5h Second Level PME/SMI Status Register 2 RC AMD Geode SC1200/SC1201 Processor Data Book 221 Index F6h Second Level PME/SMI Status Register 3 RC Reserved. Read as Index F7h Second Level PME/SMI Status Register 4 RC222 Index F8h-FFh Ration registers are located. -29gives the bit formats 30. F0BAR0+I/O Offset Gpio Configuration RegistersI/O mapped registers accessed through F0BAR0 Gpio Support Registers AMD Geode SC1200/SC1201 Processor Data Book 225 Offset 14h-17h GPDI1 Gpio Data In 1 Register ROF0BAR0+I/O Offset 18h is set, this edge generates a PME 316 Reserved. Must be set to 010100 = GPIO20 balls A9, N31 000101 Bank010010 = GPIO18 ball AG1 000011 010011 = GPIO19 ball C9 000100 AMD Geode SC1200/SC1201 Processor Data Book 227 Reserved. Set to 31. F0BAR1+I/O Offset LPC Interface Configuration RegistersLPC Support Registers 3121 AMD Geode SC1200/SC1201 Processor Data Book 229 230 Polarity selection AMD Geode SC1200/SC1201 Processor Data Book 231 Reserved Serial IRQ EnableSerial IRQ Interface Mode Number of IRQ Data Frames 232 LPC Midi Address Select. Selects I/O Port LPC Game Port 1 Address Select. Selects I/O PortLPC Game Port 0 Address Select. Selects I/O Port LPC Floppy Disk Controller Address Select. Selects I/O Port 234 Bit 32. F1 PCI Header Registers for SMI Status and Acpi Support SMI Status and Acpi Registers Function AMD Geode SC1200/SC1201 Processor Data Book 237 33. F1BAR0+I/O Offset SMI Status RegistersSMI Status Support Registers Core Logic Module SMI Status and Acpi Registers Function Offset 02h-03h Top Level PME/SMI Status Register RO/RC Suspend Modulation Enable Mirror. Read to Clear238 AMD Geode SC1200/SC1201 Processor Data Book 239 240 Yes To enable SMI generation, set F0 Index 82h6 =Yes To enable SMI generation, set F0 Index 82h5 = Offset 04h-05h AMD Geode SC1200/SC1201 Processor Data Book 241 These addresses should not be written Offset 1Ch-1Fh Offset 0Ah-1Bh242 3124 Offset 24h-27h External SMI Register R/WAMD Geode SC1200/SC1201 Processor Data Book 243 244 AMD Geode SC1200/SC1201 Processor Data Book 245 50h-FFh Offset 28h-4Fh Not Used Reset Value 00h246 Clkval Clock Throttling Value. CPU duty cycle Offset 06h Smicmd OS/BIOS Requests Register R/W34. F1BAR1+I/O Offset Acpi Support Registers Acpi Support Registers 248 SCI generation is always enabled 1514 Reserved. Must be set to Offset 0Ah-0Bh PM1AEN PM1A PME/SCI Enable Register R/W1511 Offset 0Ch-0Dh PM1ACNT PM1A Control Register R/W 250 AMD Geode SC1200/SC1201 Processor Data Book 251 252 02h0 Gpwio Control Register 1 R/W Reset Value 00hGpwio Control Register 2 R/W Reset Value 00h Reserved Consumer Electronic Infrared Reserved Reset Value 00h 254 Gpwio Data Register R/W Reset Value 00h AMD Geode SC1200/SC1201 Processor Data Book 255 Reset Value 00000F00hBit Description Offset 18h-1Bh Offset 21h-FFh IDE Controller Registers Function AMD Geode SC1200/SC1201 Processor Data Book 257 PIOMODE. PIO modeCore Logic Module IDE Controller Registers Function Bit Description Index 30h-3Fh 258 Index 60h-FFh Bit Description Index 48h-4BhIndex 50h-53h Index 58h-5Bh 260 IDE Controller Support Registers Offset 0Ch-0Fh Offset 09hOffset 0Ah Offset 0Bh Audio Registers Function 37. F3 PCI Header Registers for Audio Configuration Offset 04h-07h 38. F3BAR0+Memory Offset Audio Configuration RegistersAudio Support Registers Core Logic Module Audio Registers Function 264 AMD Geode SC1200/SC1201 Processor Data Book 265 2316 These bits change only on a fast write to an even address266 AMD Geode SC1200/SC1201 Processor Data Book 267 268 Mask Internal IRQ10. Write Only Mask Internal IRQ15. Write OnlyMask Internal IRQ14. Write Only Mask Internal IRQ11. Write Only Reserved. Set to Assert Masked Internal IRQ12 Mask Internal IRQ4. Write OnlyMask Internal IRQ3. Write Only Assert Masked Internal IRQ14 AMD Geode SC1200/SC1201 Processor Data Book 271 Bit Description Assert Masked Internal IRQ1 Offset 2Ch-2Fh Audio Bus Master 1 Command Register R/W Reset Value 00hOffset 29h Audio Bus Master 1 SMI Status Register RC Offset 2Ah-2Bh Offset 34h-37h Audio Bus Master 2 Command Register R/W Reset Value 00hOffset 31h Audio Bus Master 2 SMI Status Register RC Offset 32h-33h Offset 3Ch-3Fh Audio Bus Master 3 Command Register R/W Reset Value 00hOffset 39h Audio Bus Master 3 SMI Status Register RC Offset 3Ah-3Bh Offset 44h-47h Audio Bus Master 4 Command Register R/W Reset Value 00hOffset 41h Audio Bus Master 4 SMI Status Register RC Offset 42h-43h Offset 4Ch-4Fh Audio Bus Master 5 Command Register R/W Reset Value 00hOffset 49h Audio Bus Master 5 SMI Status Register RC Offset 4Ah-4Bh 39. F5 PCI Header Registers for X-Bus Expansion Bus Expansion Interface Function Index 28h-2Bh Bit Description Index 1Ch-1FhIndex 20h-23h Index 24h-27h Index 50h-53h F5BAR4 Mask Address Register R/W Index 58h F5BARx Initialized Register R/W Reset Value 00hIndex 48h-4Bh F5BAR2 Mask Address Register R/W Index 4Ch-4Fh F5BAR3 Mask Address Register R/W Index 68h-FFh Bit Description Index 64h-67h280 Bus Expansion Support Registers 40. F5BAR0+I/O Offset X-Bus Expansion RegistersF5 Index 10h, Base Address Register 0 F5BAR0 set 282 Three USB transceivers. Default = 128USB transceivers. Default = Iotestporten Debug Test Port Enable AMD Geode SC1200/SC1201 Processor Data Book 283 41. Pciusb USB PCI Configuration RegistersUSB Controller Registers Pciusb Core Logic Module USB Controller Registers Pciusb Reserved. Must be set to Index 08h Reset Value 08hIndex 0Dh Latency Timer Register R/W Bit Description Index 06h-07h Status Register R/W 42. USBBAR+Memory Offset USB Controller Registers 286 32579BCore Logic Module USB Controller Registers Pciusb FrameNumberOverflowEnable HcInterruptEnable Register R/W Reset Value = 00000000hOwnershipChangeEnable RootHubStatusChangeEnable Offset 28h-2Bh Bit Description StartOfFrameEnableOffset 20h-23h Offset 24h-27h Reserved. Read 0s Reset Value = 00000628hReset Value = 01000003h Bit Description Offset 38h-3Bh HcFrameRemaining Register RO 3018 BalPowerRead LocalPowerStatusChange. Not supported. Always read Offset 50h-53h HcRhStatus Register R/W AMD Geode SC1200/SC1201 Processor Data Book 291 HcRhPortStatus1 Register R/W Reset Value = 00000000hRead PortResetStatus Read PortSuspendStatus Read CurrentConnectStatus Read PortEnableStatus292 AMD Geode SC1200/SC1201 Processor Data Book 293 Reserved Reset Value = xxh 294 AMD Geode SC1200/SC1201 Processor Data Book 295 43. DMA Channel Control Registers ISA Legacy Register Space Write Priority ModeTiming Mode Core Logic Module ISA Legacy Register Space Bit Description Port 00Bh Transfer ModeChannel Number Mode Select 32579BCore Logic Module ISA Legacy Register Space Undefined Write DMA Command Register, ChannelsAMD Geode SC1200/SC1201 Processor Data Book 299 Port 0D8h Bit Description Port 0D2hPort 0D4h Port 0D6h 44. DMA Page Registers 45. Programmable Interval Timer Registers Port 043h R/W Current Counter Mode BCD ModeBit Description Port 042h Write Counter Value Read 46. Programmable Interrupt Controller Registers IRQ0 / IRQ8 Mask Poll CommandRegister Read Mode Bit Description IRQ1 / IRQ9 Mask IRQ4 / IRQ12 In-Service Interrupt Service Register IRQ7 / IRQ15 In-ServiceIRQ6 / IRQ14 In-Service IRQ5 / IRQ13 In-Service 47. Keyboard Controller Registers 49. Miscellaneous Registers 48. Real-Time Clock Registers AMD Geode SC1200/SC1201 Processor Data Book 309 310 Graphics-Video Overlay and Blending General FeaturesVideo Input Port VIP Interface Hardware Video Acceleration Tvout Display ModesVideo Input Port VIP Video Processor Module Functional DescriptionVideo Support VBI Support Active Video Video Input Port VIP Direct Mode and Capture Mode Configurations Address not changed during runtime BobAMD Geode SC1200/SC1201 Processor Data Book 317 Weave Ping-pongs between the two buffers during runtime Capture VBI ModeAMD Geode SC1200/SC1201 Processor Data Book 319 320 Video BlockVideo Input Formatter Line Buffer Maintaining Aspect Ratio Horizontal Downscaler with 4-Tap FilteringFiltering Horizontal Downscaler Ai,j Ai,j+1 Ai+1,jAi+1,j+1 Line BuffersFormatter 2.5 2-Tap Vertical and Horizontal Upscalers RAM Mixer/Blender BlockCSC RGB 324 Valid Mixing/Blending ConfigurationsFilter2 Bit Mode Comment Flicker 3.4 1/2 Y Flicker Filter YUV to RGB CSC in Video Data PathGamma Correction RGB to YUV CSC Alpha Windows Graphics WindowVideo Window Cursor Window CHROMASEL1 Truth Table for Alpha BlendingMixing/Blending Operation Color 328 Vesa Flicker Filter, Interlaced Video YUV Mixing/Blending ModeTvout Block Flicker Filter and Scan Rate Conversion Integrated DACs Vesa DDSC2B and Dpms Support T1 is a programmable multiple of frame time T0+T1 Power SequenceTFT Interface HSYNC, VSYNC, TFTDE, Tftdck 332 Divider Phase Charge LoopIntegrated PLL Compare Pump Filter Divider Out F4 PCI Header Registers for Video Processor Support Summary F4BAR0 Video Processor Configuration Registers SummaryF4BAR0+ 334 32579BVideo Processor Module Register Summary F4BAR2+ Name Value Tvout Configuration RegistersF4BAR2 VIP Support Registers Summary Encoder Registers 3112 VIP Base Address 110 Address Range. Read Only Reset Value 0504hReset Value 030000h Video Processor Registers Function Index 3Eh-FFh Reserved Video Processor Module Video Processor Registers FunctionAMD Geode SC1200/SC1201 Processor Data Book 337 To 0 or 1 should be written with a value that is read Video Configuration Register R/W Reset Value 00000000hEN42X Enable 42x Format. Allows format selection Video Processor Support Registers F4BAR0 Ddcsdaout DDC Output Data. DDC data bit for output Offset 04h-07h Display Configuration Register R/WTions of the power sequence control lines 1614 3028 340 Offset 08h-0Bh Video X Position Register R/W AMD Geode SC1200/SC1201 Processor Data Book 341 Bit Description 100 Block Offset 20h-23h Reset Value 00001400h12 PLL2PWREN PLL2 Power-Down Enable Bit Description Offset 1Ch-1Fh FLTCO3 Filter Coefficient 3. For the tap-3 filter DTS Downscale Type SelectOffset 40h-43h Video Downscaler Coefficient Register R/W FLTCO4 Filter Coefficient 4. For the tap-4 filter Bit Description Offset 44h-47h CRC Signature Register R/W Reserved Signen Signature EnableReset Value 0000xxxxh Reset Value 00060000h AMD Geode SC1200/SC1201 Processor Data Book 345 100 i.e., shift one line otherwise, leave at 346 Bit Description Offset 50h-53hOffset 54h-57h Offset 60h-63h Alpha Window 1 X Position Register R/W Decremented until it is reloaded via bit 17 Loadalpha 3118AMD Geode SC1200/SC1201 Processor Data Book 347 348 Video Fifo Underflow Empty Offset 90h-93hOffset 94h-97h Offset 400h-403h Upscale horizontally VBI data by Video Fifo OverFlow FullVBI Fifo Underflow Empty VBI Fifo Overflow Full Port Offset 41Ch-41Fh Genlocktouten GenLock Timeout EnableBit Description Offset 414h-417h 3120 Reserved 190 3121 Reserved 200 Ctgenlocken Enable Continuous GenLock FunctionSggenlocken Enable a Single GenLock Function Offset 424h-427h Offset 810h-813h Bit Description Offset 80Ch-80Fh Offset C00h-C03h Horintp Horizontal InterpolationFieldinvr Field Invert Offset 81Ch-81Fh AMD Geode SC1200/SC1201 Processor Data Book 355 2920 D24 A24 TV DAC Mode Bits Ball NoA23 Mode Offset C08h-C0Bh AMD Geode SC1200/SC1201 Processor Data Book 357 Offset C24h-C27h3114 Offset C28h-C2Bh Offset C50h-C53h Reset Value 00000020hReset Value 00000004h Bit Description Offset C2Ch-C2Fh AMD Geode SC1200/SC1201 Processor Data Book 359 10. F4BAR2+Memory Offset VIP Configuration RegistersVIP Support Registers F4BAR2 All other decodes Reserved 2322 Capture Store to Memory VBI DataCapture Store to Memory Video Data Reserved.Read Only Current Field. Read Only Offset 24h-27h Video Data Even Base Register R/W Video Data Capture Active. Read OnlyReserved. Read Only Run Status. Read Only Offset 14h-17h Offset 48h-4Bh VBI Data Pitch Register R/W 3116 Reserved 150Offset 2Ch-3Fh Offset 44h-47h VBI Data Even Base Register R/W Optional Instruction Support Jtag Mode Instruction SupportTestability Jtag Mandatory Instruction Support 364 Absolute Maximum Ratings General SpecificationsPower/Ground Connections and Decoupling Electro Static Discharge ESD Operating Conditions Symbol Parameter Min Typ Max Unit Comments366 DC Current Power Planes of External Interface SignalsPower Plane Signal Names VCC Balls VSS Balls Power State Parameter Definitions DC Characteristics for On State Ball Capacitance and Inductance DC Characteristics for Active Idle, Sleep, and Off StatesSymbol Parameter Note Min Typ Max Unit Comments Symbol Parameter Min Typ Max Unit Comment External PU or PD resistor Pull-Up and Pull-Down ResistorsBalls with PU/PD Resistors VIO 10. Buffer Types DC CharacteristicsSymbol Description Reference Wire Inbtn DC Characteristics Inab DC CharacteristicsInpci DC Characteristics INTS1 DC Characteristics Instrp DC CharacteristicsINT DC Characteristics Ints DC Characteristics ODn DC Characteristics Inusb DC Characteristics Ousb DC Characteristics Odpci DC CharacteristicsOp/n DC Characteristics Opci DC Characteristics CLK AC Characteristics11. Default Levels for Measurement Switching Parameters Symbol Parameter Value Outputs Memory Controller InterfaceInputs 13.5 32579BElectrical Specifications12. Memory Controller Timing Parameters SDCLK30, Sdclkout high time MD630 Data Valid Read Data T1, t2, t3 t10SDCLK30 Control Output, MA120 BA10, MD630 Vpckin Vref 14. Video Output Port Timing Parameters 15. TFT Timing Parameters CRT and TFT Interface 16. CRT Vesa Compatible DAC RED, GREEN, and Blue Outputs Symbol Parameter Note Min Max Unit Comments LSB Tvref RESIRE LSB DNL 18. ACCESS.bus Input Timing Parameters ACCESS.bus Interface19. ACCESS.bus Output Timing Parameters AB1C AB2C AB1D AB2D AB1D AB2D AB1C AB1D AB2D AB1C AB2CAMD Geode SC1200/SC1201 Processor Data Book 387 PCI Bus 20. PCI AC Specifications Equation a Equation B 64VIO Pciclk 0.4 V IO 21. PCI Clock Parameters 22. PCI Timing Parameters 23. Measurement Condition Parameters Symbol Value Unit CommentsMeasurement and Test Conditions Ms typ PowerSignals Input Valid Bus Width Min Symbol Parameter Bits Type CommentsSub-ISA Interface 24. Sub-ISA Timing Parameters MEMR#/DOCR#/IOR# Bus Width Min Max Symbol Parameter Bits Type Comments IOW#/WR# MEMW#/DOCW# ROMCS#/DOCCS#IOR#/RD#/TRDE# MEMR#/DOCR# D150 DOCCS#/ROMCS#IOCS10# IOW#/WR# MEMW#/DOCW# TRDE# LPC Interface 25. LPC and Serirq IDERST# pulse width IDE signals fall time from 0.9V IO to 0.1V IO = 40 pFIDE signals rise time from 0.1V IO to 0.9V IO = 40 pF IDE Interface Timing 26. IDE General Timing Parameters Width 8-bit min Mode Symbol Parameter Unit Comments27. IDE Register Transfer to/from Device Timing Parameters Cycle time min IDEIORDY0 2,3 Addr valid1IDEIOR0# IDEIOW0# Write IDEDATA70 Read IDEDATA70 165 125 100 28. IDE PIO Data Transfer to/from Device Timing Parameters402 Read IDEDATA150 IDEIOR0# IDEIOW0# Write IDEDATA150AMD Geode SC1200/SC1201 Processor Data Book 403 29. IDE Multiword DMA Data Transfer Timing Parameters IDEDREQ0 IDEDACK0# IDEIOR0# IDEIOW0# IDECS10#AMD Geode SC1200/SC1201 Processor Data Book 405 30. IDE UltraDMA Data Burst Timing Parameters Mode Symbol Parameter Min Max Unit Comments406 IDEIRDY0 DSTROBE0 IDEREQ0STOP0 IDEIOR0# HDMARDY0# 408 IDEIRDY0 DSTROBE0 at deviceIDEDATA150 at device IDEIRDY0 DSTROBE0 at host IDEDATA150 at host AMD Geode SC1200/SC1201 Processor Data Book 409 IDEDREQ0 device IDEDACK0# hostIDEIOW0#STOP0# host IDEIOR0#HDMARDY0# IDEIOW0# STOP0# IDEDREQ0 device410 IDEADDR20 IDEIOW0# STOP0# host IDEIOR0# HDMARDY0# hostIDEIRDY0 DSTROBE0 device IDEDATA150 device IDECS01# IDEIOR0# HSTROBE0# host DevicetUI IDEDACK0# hostIDEIOW0# STOP0# host IDEIORDY0 DDMARDY0 device IDEDATA150 at device HSTROBE0#At host IDEDATA150 At host IDEIOR0# HSTROBE0# at device 414 IDEDREQ0 device IDEDACK0# host IDEIOW0# STOP0# hostIDEIORDY0# DDMARDY0# IDEIOR0# HSTROBE0# AMD Geode SC1200/SC1201 Processor Data Book 415 IDEIORDY0# DDMARDY0# deviceIDEDATA150 host IDEADDR20 IDECS01# IDEDACK0# host IDEDATA150 host IDECS01# IDEADDR20 IDEDREQ0 device IDEDACK0 host IDEIOW0# STOP0# host416 Full Speed Receiver EOP Width Note Universal Serial Bus USB 31. USB Timing ParametersLow Speed Source Note Low Speed Receiver EOP Width Note Source EOP widthHost upstream Receiver data jitter tolerance for paired Consecutive Transitions Rise Time Fall TimeDifferential Data Lines Differential Data Lines Crossover Points 2.0 Differential Crossover Points Data Lines Differential Data to SE0 SkewData Crossover Level EOP Width Setting of the Rxhsc bit bit 5 of the Rccfg register Modulation signal periodTCPN + Transmitter Sharp-IR and Consumer Remote Control SIR signal pulse width MIR Fast IR Port Timing 33. Fast IR Port Timing ParametersFIR STB# Busy ACK# 35. Enhanced Parallel Port Timing Parameters Symbol Parameter MinUnit Comments Busy 36. ECP Forward Mode Timing ParametersExtended Capabilities Port ECP Timing AFD# BUSY# 37. ECP Reverse Mode Timing Parameters AC97RST# active low pulse width Audio Interface Timing AC97 38. AC Reset Timing ParametersAC97RST# inactive to Bitclk 162.8 Startup delay Sync inactive to Bitclk startup 162.8 Delay AC97CLK Vold 40. AC97 Clocks Parameters SDATAOUT/SYNC SDATAIN, SDATAIN2 41. AC97 I/O Timing Parameters 42. AC97 Signal Rise and Fall Timing Parameters Bitclk Sdataout 43. AC97 Low Power Mode Timing ParametersEnd of Slot 2 to Bitclk Sdatain low Slot ONCTL# PWRBTN# Power ManagementPower management event to ONCTL# Assertion 44. PWRBTN# Timing Parameters PWRBTN# ONTCL# PWRCNT21 POR# 434 POR# 32KHZ TDI, TMS hold time TDI, TMS setup timeNon-test inputs setup time Jtag Interface 48. Jtag Timing Parameters 436 Output SignalsInput Signals TDI TMS TDO ΘJC ×C/W Thermal CharacteristicsCase-to-Ambient Thermal Resistance Example @ 85C Assume P max = 9W and TA max = 40C Therefore Heatsink ConsiderationsExample Assume P max = 5W and TA max = 40C Therefore Package Specifications Physical DimensionsAMD Geode SC1200/SC1201 Processor Data Book 439 440 BGU481 Package Bottom View MHz Order InformationMacrovision Product Notice Ordering Part Number Core Frequency Table A-1. Revision History Data Book Revision HistoryRevision # Revisions / Comments

AMD SC1201 RTC General-Purpose RAM Map 24. Standard RAM Map, Extended RAM Map, Index Description

Models: SC1200 SC1201

5.5.3.1Usage Hints

5.5.4RTC General-Purpose RAM Map

Table 5-24. Standard RAM Map

Index

Description

0Eh - 7Fh

Battery-backed general-purpose 111-

byte RAM.

Table 5-25. Extended RAM Map

00h - 7Fh

Battery-backed general-purpose 128-

byte RAM.