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VT82C686A
REVISION HISTORY
Document Release Revision Revision Revision Revision Revision Revision Revision 0.72 Revision Revision Revision Revision Revision 1.23 Date 2/10/98 3/17/98 4/20/98 4/29/98 5/27/98 5/29/98 12/1/98 12/7/98 12/9/98 1/15/99 4/15/99 5/17/99 Revision Initial release based 82C596 "Mobile South" Data Sheet revision Updated features, overview, pins, regs; Added list, Sup-IO, HWM, audio Revised pinouts, fixed changed defs, added regs funcs Corrected features, descriptions, f4/game port regs, removed timing Updated feature bullets, pinouts, registers functions Updated registers functions Changed name 686A, updated feature bullets, names, register defs Updated register definitions Updated register definitions Corrected feature bullets, typos, ROMCS# description, f0Rx8, f4Rx2 Fixed block diagram, pinouts, register descriptions electrical specs Fixed GPI1,5,6, GPO1-3,6, PCS0#, DRQ2/DACK2#, MCCS#, PCS0#, GPO0/SLOWCLK, GPIOA-D, DACK0-7# option, Fixed SuperIO RxF0-1,F6; Changed DRVEN DRVDEN, moved PME# from MCCS# SCIOUT# "CF" (opposite prior "CF") Fixed Rx42,74,76, Rx43, F5/6 Rx48, Rx44 1.3x created document CD/CE only (info version removed) Updated U5/U8 defs; fixed Rx74[5,7],76[4-3],77[0],PMUIO Rx44[5,3-1] Fixed typo SUSST1# description; Fixed Super-I/O RxF8 table Modified Rx59, F2/3 Rx4142,80-84, Rx4C[0], Rx42[2-1],44[2-1], F5/6 Rx4A-4B, Base Rx12[6] Fixed typo PDIOR#/SDIOR# descriptions Func Rx42[4] Added SCIOUT# GPIO11 (pin U8), fixed typos CHAS description Fixed typos Serial Port register descriptions, changed logo format Changed "OD" types "O"; fixed table port address range Fixed register summary tables: SuperIO Fixed descriptions: SuperIO defaults; FDCbase+4 LPTbase+402; COM1/2 index value references; Com1/2 Divisor offset Changed silicon version CF/CG same programming pinout Fixed description serial port muxed COM2) Fixed Parallel Port Index, index Base+7 register description Fixed typo Func Rx48 description Changed Mgmt Rx44[3-2] (different CD/DE CF/CG silicon) Added internal APIC names; fixed name polarity diagram Corrected Rx41[6],58,74[7],77[4], Rx54[5], F2/3 Rx43, Rx4D[3],54[3-2],55[2], Rx0[8], added APIC regs Fixed feature bullet typos, APIC/GPI/GPO descriptions, Rx76[4],77[4] Fixed Func AC97 summary tables; Ctrl bit-3 changed reserved Fixed direction APICD0-1 pins (changed from Fixed defaults register tables Func Rx40, Added notea Rx41[3] Rx45; fixed Rx45[1-0] misc typos Initials
Revision 1.24
6/18/99
Revision Revision Revision 1.42
6/25/99 6/25/99 7/7/99
Revision 1.43 Revision 1.45 Revision
10/7/99 12/3/99 12/21/99
Revision 1.51
1/7/00
Revision 1.52
1/17/00
Revision 1.53 Revision 1.54
2/8/00 2/25/00
Revision 1.54 February 2000
Revision History
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VT82C686A
TABLE CONTENTS
REVISION HISTORY.I TABLE CONTENTS. LIST FIGURES.IV LIST TABLES OVERVIEW PINOUTS DIAGRAM. LISTS. DESCRIPTIONS. REGISTERS REGISTER OVERVIEW REGISTER DESCRIPTIONS. Legacy Ports
Keyboard Controller Registers. Controller Registers Interrupt Controller Registers Timer Counter Registers CMOS Registers.
Super-I/O Configuration Index Data Registers Super-I/O Configuration Registers Super-I/O Ports
Floppy Disk Controller Registers. Parallel Port Registers. Serial Port Registers. Serial Port Registers.
SoundBlaster Port Registers.
Registers Mixer Registers Sound Processor Registers
Game Port Registers Configuration Space I/O. Function Registers Bridge.
Configuration Space Header Control. Plug Play Control Distributed Serial Control Miscellaneous General Purpose I/O.
Function Registers Enhanced Controller
Configuration Space Header IDE-Controller-Specific Confiiguration Registers Registers.
Function Registers Controller Ports
Configuration Space Header USB-Specific Configuration Registers. Registers.
Function Registers Controller Ports
Configuration Space Header USB-Specific Configuration Registers. Registers.
Revision 1.54 February 2000
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Table Contents
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VT82C686A
Function Regs Power Management, SMBus HWM.
Configuration Space Header Power Management-Specific Configuration Registers Hardware-Monitor-Specific Configuration Registers System Management Bus-Specific Configuration Registers Power Management I/O-Space Registers System Management I/O-Space Registers. Hardware Monitor Space Registers
Function Registers AC97 Audio Modem Codecs
Configuration Space Header Function Audio Configuration Space Header Function Modem. Function Codec-Specific Configuration Registers Base Registers -Audio/Modem Scatter/Gather DMA. Base Registers Audio Status Registers Base Registers MIDI Game Port. Memory Mapped APIC Registers Silicon). Indexed APIC 32-Bit Registers Silicon)
FUNCTIONAL DESCRIPTIONS POWER MANAGEMENT
Power Management Subsystem Overview Processor States System Suspend States Power Plane Control General Purpose Ports. Power Management Events System Processor Resume Events Legacy Power Management Timers System Primary Secondary Events Peripheral Events
ELECTRICAL SPECIFICATIONS. ABSOLUTE MAXIMUM RATINGS CHARACTERISTICS. PACKAGE MECHANICAL SPECIFICATIONS
Revision 1.54 February 2000
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Table Contents
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VT82C686A
LIST FIGURES
FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE SYSTEM CONFIGURATION USING VT82C686A VT82C686A BALL DIAGRAM (TOP VIEW). VT82C686A LIST (NUMERICAL ORDER) VT82C686A LIST (ALPHABETICAL ORDER). STRAP OPTION CIRCUIT. POWER MANAGEMENT SUBSYSTEM BLOCK DIAGRAM MECHANICAL SPECIFICATIONS BALL GRID ARRAY PACKAGE.
LIST TABLES
TABLE TABLE TABLE TABLE TABLE DESCRIPTIONS. SYSTEM REGISTERS. KEYBOARD CONTROLLER COMMAND CODES CMOS REGISTER SUMMARY.
Revision 1.54 February 2000
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Table Contents
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VT82C686A
VT82C686A PSIPC
SUPER-I/O INTEGRATED PERIPHERAL CONTROLLER PC99 COMPLIANT PCI-TO-ISA BRIDGE WITH INTEGRATED SUPER-I/O (FDC, LPT, COM1/2, IR), INTEGRATED HARDWARE SOUNDBLASTER/DIRECT SOUND AC97 AUDIO, ULTRADMA-33/66 MASTER MODE PCI-EIDE CONTROLLER, CONTROLLER, KEYBOARD CONTROLLER, RTC, DISTRIBUTED DMA, SERIAL IRQ, PLUG PLAY, ACPI, ENHANCED POWER MANAGEMENT, SMBUS, TEMPERATURE, VOLTAGE, FAN-SPEED MONITORING
Inter-operable with other Host-to-PCI Bridges Combine with VT82C598 complete Super-7 (66/75/83/100MHz) system (Apollo MVP3) Combine with VT8501 complete Super-7 system with integrated graphics (Apollo MVP4) Combine with VT82C693 complete Socket-370 Slot-1 system (Apollo Pro133) Combine with VT8601 complete Socket-370 Slot-1 system with integrated Inter-operable with Intel other Host-to-PCI bridges complete PC99 compliant system Bridge Integrated Controller with integrated DMA, timer, interrupt controller Integrated Keyboard Controller with mouse support Integrated DS12885-style Real Time Clock with extended byte CMOS Day/Month Alarm ACPI Integrated Controller with root four function ports Integrated UltraDMA-33/66 master mode EIDE controller with enhanced commands PCI-2.2 compliant with delay transaction remote power management Eight double-word line buffer between level post-write buffer Supports type transfers Distributed support legacy across Serial interrupt docking non-docking applications Fast reset Gate operation Edge trigger level sensitive interrupt Flash EPROM, EPROM combined BIOS support Supports positive subtractive decoding
graphics (Apollo ProMedia)
Revision 1.54 February 2000
Features
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VT82C686A
UltraDMA-33 Master Mode EIDE Controller Dual channel master mode supporting four Enhanced devices Transfer rate 33MB/sec cover mode multi-word mode drives, UltraDMA-33 interface Increased reliability using UltraDMA-66 transfer protocols Thirty-two levels (doublewords) prefetch write buffers Dual engine concurrent dual channel operation master programming interface SFF-8038i rev.1.0 Windows-95 compliant Full scatter gather capability Support ATAPI compliant devices including devices Support native compatibility modes Complete software driver support Integrated Super Controller Supports serial ports, port, parallel port, floppy disk controller functions UARTs Complete Serial Ports
Programmable character lengths (5,6,7,8) Even, odd, stick parity generation detection Programmable baud rate generator High speed baud rate (230Kbps, 460Kbps) support Independent transmit/receiver FIFOs Modem Control Plug play with base address options Infrared-IrDA (HPSIR) (Amplitude Shift Keyed) port multiplexed COM2 Multi-mode parallel port Standard mode, support Plug play with base address, options Floppy Disk Controller bytes FIFO Data rates 1Mbps Perpendicular recording driver support FDDs with drive swap support Plug play with base address, options
SoundBlaster Hardware Direct Sound Ready AC97 Digital Audio Controller Dual full-duplex Direct Sound channels between system memory AC97 link master interface with scatter gather bursting capability byte FIFO each direct sound channel Host based sample rate converter mixer Standard v1.0 v2.0 AC97 Codec interface single cascaded AC97 Codec's from multiple vendors Loopback capability re-directing mixed audio streams into 1394 speakers Hardware SoundBlaster Windows real-mode legacy compatibility Plug play with IRQ, DMA, space options SoundBlaster MIDI hardware Hardware assisted synthesis legacy compatibility Direct game ports MIDI port interface Complete software driver support Windows-95/98/2000 Windows-NT Voltage, Temperature, Speed Monitor Controller Five positive voltage (one internal), three temperature (one internal) fan-speed monitoring Programmable control, status, monitor alarm flexible desktop management External thermister internal bandgap temperature sensing Automatic clock throttling with integrated temperature sensing Internal core voltage sensing Flexible external voltage sensing arrangement (any positive supply battery)
Revision 1.54 February 2000
Features
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VT82C686A
Universal Serial Controller v.1.1 Intel Universal v.1.1 compatible Eighteen level (doublewords) data FIFO with full scatter gather capability Root four function ports Integrated physical layer transceivers with optional over-current detection status inputs Legacy keyboard PS/2 mouse support System Management Interface Host interface processor communications Slave interface external SMBus masters Sophisticated PC99-Compatible Mobile Power Management Supports both ACPI (Advanced Configuration Power Interface) legacy (APM) power management ACPI v1.0 Compliant v1.2 Compliant clock throttling clock stop control complete ACPI state support clock run, Power Management Enable (PME) control, PCI/CPU clock generator stop control Supports multiple system suspend types: power-on suspends with flexible CPU/PCI reset options,
suspend DRAM, suspend disk (soft-off), with hardware automatic wake-up Multiple suspend power plane controls suspend status indicators idle timer, peripheral timer general purpose timer, plus 24/32-bit ACPI compliant timer Normal, doze, sleep, suspend conserve modes Global local device power control System event monitoring with event classes Primary secondary interrupt differentiation individual channels Dedicated input pins power sleep buttons, external modem ring indicator, notebook open/close system wake-up general purpose input ports output ports Multiple internal external sources flexible power management models programmable chip select microcontroller chip select Enhanced integrated real time clock (RTC) with date alarm, month alarm, century field Thermal alarm either external combination three internal temperature sensing circuits docking support leakage control
Plug Play Controller interrupts steerable interrupt channel Steerable interrupts integrated peripheral controllers: USB, floppy, serial, parallel, audio, soundblaster, MIDI Steerable channels integrated floppy, parallel, soundblaster controllers additional steerable interrupt channel on-board plug play devices Microsoft Windows 98TM, Windows NTTM, Windows 95and plug play BIOS compliant Integrated APIC (Advanced Peripheral Interrupt Controller) Silicon) Built-in NAND-tree scan test capability 0.35um, 3.3V, power CMOS process Single chip 27x27
Revision 1.54 February 2000
Features
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VT82C686A
OVERVIEW
VT82C686A PSIPC (PCI Super-I/O Integrated Peripheral Controller) high integration, high performance, power-efficient, high compatibility device that supports Intel non-Intel based processor bridge functionality make complete Microsoft PC99-compliant PCI/ISA system. addition complete extension functionality, VT82C686A includes standard intelligent peripheral controllers: Master mode enhanced controller with dual channel engine interlaced dual channel commands. Dedicated FIFO coupled with scatter gather master mode operation allows high performance transfers between devices. addition standard mode operation, VT82C686A also supports UltraDMA-33 standard allow reliable data transfer rates 33MB/sec throughput. VT82C686A also supports UltraDMA-66 standard. controller SFF-8038i v1.0 Microsoft Windows-family compliant. Universal Serial controller that v1.1 Universal v1.1 compliant. VT82C686A includes root with four function ports with integrated physical layer transceivers. controller allows plug play isochronous peripherals inserted into system with universal driver support. controller also implements legacy keyboard mouse support that legacy software transparently non-USB-aware operating system environment. Keyboard controller with mouse support. Real Time Clock with byte extended CMOS. addition standard functionality, integrated also includes date alarm, century field, other enhancements compatibility with ACPI standard. Notebook-class power management functionality compliant with ACPI legacy requirements. Multiple sleep states (power-on suspend, suspend-to-DRAM, suspend-to-Disk) supported with hardware automatic wake-up. Additional functionality includes event monitoring, clock throttling stop (Intel processor protocol), clock stop control, modular power, clock leakage control, hardware-based software-based event handling, general purpose I/O, chip select external SMI. Hardware monitoring subsystem managing system motherboard voltage levels, temperatures, speeds Full System Management (SMBus) interface. 16550-compatible serial ports with infrared communications port option second port. Integrated PCI-mastering dual full-duplex direct-sound AC97-link-compatible sound system. Hardware soundblaster-pro hardware-assisted blocks included Windows real-mode compatibility. Loopback capability also implemented directing mixed audio streams into 1394 speakers high quality digital audio. game ports MIDI port ECP/EPP-capable parallel port Standard floppy disk drive interface Distributed capability support legacy over bus. Serial also supported docking non-docking applications. Plug Play controller that allows complete steerability interrupts internal interrupts channels interrupt channel. additional steerable interrupt channel provided allow plug play reconfigurability onboard peripherals Windows family compliance. Internal APIC (Advanced Programmable Interrupt Controller)
Revision 1.54 February 2000
Overview
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VT82C686A
VT82C686A also enhances functionality standard peripherals. integrated interrupt controller supports both edge level triggered interrupts channel channel. integrated controller supports type addition standard modes. Compliant with PCI-2.2 specification, VT82C686A supports delayed transactions remote power management that slower peripherals block traffic bus. Special circuitry built allow concurrent operation without causing dead lock even PCI-to-PCI bridge environment. chip also includes eight levels (doublewords) line buffers from further enhance overall system performance.
Cache Sideband Signals: Init CPUreset StopClk FERR IGNNE SLP# (Slot-1) Boot Crystal Expansion Cards North Bridge MA/Command Ports Keyboard Mouse Expansion MIDI Game Ports Cards Parallel Port Serial Ports Infrared Comm Port Primary Secondary Floppy Disk Interface AC97 Link Hardware Monitor Inputs GPIO, Power Control, Reset System Memory DIMM Module
VT82C686A
Figure System Configuration Using VT82C686A
Revision 1.54 February 2000
Overview
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