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Texas Instruments PCI445X manual Socket Activity LEDs, MFUNC7±MFUNC0 Terminal Assignments

Models: PCI445X

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1.1.10 Socket Activity LEDs

System Features Selection

1.1.10 Socket Activity LEDs

Socket activity signals can be assigned on MFUNC4 (slot 1), MFUNC3 (slot 2), MFUNC5 (OHCI_LED), MFUNC6 (OHCI_LED), and MFUNC7 (OHCI_LED).

1.1.11 MFUNC7±MFUNC0 Terminal Assignments

After selecting required functions for the system, multifunction terminals MFUNC7±MFUNC0 are ready to be assigned. Texas Instruments offers Windows-based software, named TIROUTE.EXE, to assist with terminal assignment.

1.1.12 Miscellaneous Functions Description

1.1.12.1 Serialized Interrupt Control

Serialized interrupt signaling is described below.

Figure 1±2. Serialized Interrupt Signal

PCLK

IRQSER
START Frame	IRQ0	IRQ1	SMI	IRQ3	IRQ4 IRQ5 IRQ6 IRQ7 IRQ8 IRQ10 IRQ11 IRQ12
PCLK
IRQSER
IRQ13 IRQ14 IRQ15 IOCHCK	INTA	INTB	INTC	INTD	STOP Frame

The start frame width may vary from four to eight PCI clock cycles. The STOP frame width is two clock cycles for quiet mode and three clock cycles for continuous mode. Default mode is continuous mode for all slave devices and a host device. PIIX4 does not support IRQ0, IRQ8, and IRQ13.

The PCI445X can generate serial IRQ frames for ISA and PCI interrupts. Below are related registers and their definitions.

INTMODE bits (device control register, PCI offset 92h, bits 2±1). Select interrupt mode

SER_STEP bits (system control register, PCI offset 80h, bits 31±30). Change PCI interrupt data frame (serial interrupts only)

INTRTIE bit (system control register, PCI offset 80h, bit 29). Tie CardBus PCI interrupts to INTA

TIEALL bit (system control register, PCI offset 80h, bit 28). Tie all PCI interrupts internally

Refer to the Serialized IRQ Support for PCI Systems specification, revision 6.0.

1.1.12.2 CSC Interrupt Routing for Windows Compatibility

The CSC interrupt routing control bit (diagnostic register, PCI offset 93h, bit 5) should be set to 1 (default) to keep Windows compatibility.

PCI445X Device

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Texas Instruments PCI445X Socket Activity LEDs, MFUNC7±MFUNC0 Terminal Assignments, Miscellaneous Functions Description

Contents

SCPU007 PCI Bus SolutionsImplementation Guide AugustIMPORTANT NOTICE Notational Conventions How to Use This ManualRead This First About This ManualC csr ±a /user/ti/simuboard/utilities asect ªsection nameº, addressLALK 16±bit constant , shift byte value1 , ... , valuenRelated Documentation From Texas Instruments PCI4450 GFN/GJG PC Card and OHCI Controller Data Sheet, SCPS046OHCI.Lynx Configuration Information Application Report, SLLA077 TSB41LV03A Data Sheet, SLLS364Page Contents A Global Reset Only Bits, PME Context Bits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1 1±5 Example of a ZV Interface 1±6 Distributed DMA Signal Connection Figures1±1 Typical System Architecture 1±2 Serialized Interrupt Signal 1±3 EEPROM 2-Wire Interface 1±4 TPS22X6 Power Switch InterfaceTables Topic PCI445X DeviceChapter PageFigure 1±1. Typical System Architecture 1.1.2 GRST and PRST 1.1 System Features Selection1.1.3 PME and RI Signaling 1.1.1 Package Types1.1.8 Distributed DMA DDMA 1.1.7 Socket Power Switches1.1.9 Optional PCI Signals 1.1.6 PCI and ISA Style Interrupt1.1.12 Miscellaneous Functions Description Figure 1±2. Serialized Interrupt Signal1.1.10 Socket Activity LEDs 1.1.11 MFUNC7±MFUNC0 Terminal Assignments1.1.12.5 Memory Burst R/W Operation Control 1.1.12.4 CardBus Reserved Terminal Signaling1.1.12.6 Power Savings Mode 1.1.12.3 Asynchronous CSC Interrupt Generation1.1.12.12 ZV Port Control and Auto Detect Function 1.1.12.10 Socket Power Lock1.1.12.9 SMI 1.1.12.11VCC ProtectionPCLK, AD31±AD0, C/BE3±C/BE0, PAR, DEVSEL, FRAME, STOP 1.2 System Implementation1.2.1 Clamping Rails 1.2.2 PCI Bus InterfaceNote Pullup Resistor Requirements PRST PCI reset and GRST Global resetINTA, INTB, and INTC CLKRUN1.2.3 PC Card Interface 1.2.4 2-Wire I2C Interface for EEPROMFigure 1±3. EEPROM 2-Wire Interface Socket power supplyBits Loaded From Table 1±1. Registers and Bits Loadable Through Serial EEPROMRegister Offset RegisterFollowing is an example EEPROM data file used with the PCI445X device 1.3 Sample PCI445X EEPROM Data File1D 0xFF 1E 0xFF 1F 0xFF Figure 1±5. Example of a ZV Interface 1.3.1 P2C Interface for TPS22X6 Power SwitchFigure 1±4. TPS22X6 Power Switch Interface 1.3.2 Zoomed Video ZV InterfaceParallel PCI Interrupt 1.3.3 Interrupt Signaling Interface1.3.4 Miscellaneous Signals Serialized Interrupt InterfaceSystem Implementation Figure 1±6. Distributed DMA Signal Connection1.3.5 Requirement of Pullup/Pulldown Resistors Table 1±2. PC Card Interface Pullup Resistor List² ³Table 1±4. Miscellaneous Terminals Pullup Resistor List Table 1±3. PCI Bus Interface Pullup Resistor ListSystem Implementation Table 1±5. Required Pullup/Pulldown ResistorsSignal Pulldown DefaultCardBus latency timer register PCI offset 1Bh 8-bit 1.4 BIOS ConsiderationsCommand register PCI offset 04h 16-bit Latency timer PCI offset 0Dh 8-bit1 SUSPEND Power management control/status register PCI offset A4h 16-bit1.4.2 System Sleeping State Consideration 1.4.1.2 PCI TI Proprietary Registers Initialization1.4.3 Docking System Consideration 2 Register save/restore1.5.2 PME/RIOUT Bit Definition 1.5.4 Socket Power Control1.5 Important Information 1.5.1 GRST Clamping RailPage Appendix ATopic Global Reset Only Bits, PME Context BitsTable A±1.Global Reset Only Cleared Bits A.1 Global Reset Only Bits/PME Context BitsTable A±2.PME Context Bits Page Page PME and RI BehaviorAppendix B TopicTable B±1.CardBus CTSCHG and Wake-Up Signals Truth Table Table B±2.16-Bit Card RI/STSCHG and Wake-Up Signals Truth TableB.1 PME and RI Behavior Page PCI445X Buffer TypesAppendix C TopicPCI445X Buffer Types Table C±1. PCI445X Terminal Function Assignment and Buffer TypesPCI445X Buffer Types Terminal Signal NameSignal Name PCI445X Buffer TypesTerminal Signal NameSignal Name PCI445X Buffer TypesTerminal Signal NameSignal Name PCI445X Buffer TypesTerminal Signal NameSignal Name PCI445X Buffer TypesDescription Table C±2. Buffer Type AbbreviationsPCI445X Buffer Types Buffer Type