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**M1535/D        South Bridge                                        ?
***Info:
The  M1535  provides the  highest  integration  south bridge  solution
between PCI bus and Peripheral buses for personal computer systems. It
includes audio, high-speed modem, Super  I/O and Fast IR integrated in
to  one chip to  complement any  one of  ALi’s North  Bridge solutions
namely M1541, M1621 and M1631.

The  M1535 is  PCI spec.   2.2 compliant.   It provides  steerable PCI
Interrupts for PCI device Plug-and-Play, it has up to 8 PCI interrupts
routing, it  has level to edge  trigger transfer. It  has enhanced DMA
controller.  It  provides 14 interrupt channels  as Interrupt Control-
ler.  It provides 8254 Compatible timers for system timer, Refresh Re-
quest,  Speaker  Output  use.  It  has  7  DMA  channels that  can  be
arbitrarily programmed as distributed  channels.  It provides 1 PC/PCI
DMA channel interface.  It supports serialized IRQ in quiet/continuous
mode.  It  supports Plug-and-Play.  It  has built-in PS2  Keyboard and
mouse controller.  It provides hot plugging events detection.

The M1535 also provides the  best power management solution. The M1535
integrates  ACPI   support,  deep  green   function,  2-channel  Ultra
DMA-33/66  IDE bus  master  controller, 4-port  USB controller,  SMBus
controller,  Super  I/O, audio  system  and  software  modem into  one
27mmx27mm BGA  (Ball Grid Array)  chip. 

Further  more, the  M1535  is  designed to  meet  the requirements  of
desktop, mobile PCs.

***Versions:...
***Features:
o   Provides a High Integration Bridge (with Audio, HSP Modem, Super 
    I/O & Fast IR) between PCI Bus and Peripheral Bus for Notebook or 
    Mobile Systems
o   PCI 3.3V/5V Tolerance Interface
    - Supports PCI Master and Slave Interface
    - Supports PCI Master and Slave Initiated Termination
    - Concurrent PCI Architecture
    - PCI spec. 2.2 Compliant
    - PCI Power Management Interface spec. 1.1 Compliant
o   Provides Steerable PCI Interrupts for PCI Device Plug-and-Play
    - Up to 8 PCI Interrupts Routing
    - Level to Edge Trigger Transfer
o   Enhanced DMA Controller
    - Provides 7 Programmable Channels, 4 for 8-bit Data Size, 3 for 
      16-bit Data Size
    - 32-bit Addressability
o   Interrupt Controller
    - Provides 14 Interrupt Channels
    - Independent Programmable Level/Edge Triggered Channels
o   Counter/Timers
    - Provides 8254 Compatible Timers for System Timer, Refresh 
      Request, Speaker Output Use
o   Distributed DMA Supported
    - 7 DMA Channels can be Arbitrarily Programmed as Distributed 
      Channels
o   PC/PCI DMA Supported
    - 1 PC/PCI DMA Channel Interface Provided
o   Serialized IRQ Supported
    - Quiet/Continuous Mode
    - Programmable (Default 21) IRQ/DATA Frames
    - Programmable START Frame Pulse Width
o   Plug-and-Play Supported
    - 2 Programmable Chip Select
    - 2 Steerable Interrupt Request Lines
o   Built-in Keyboard Controller
    - Built-in PS2/AT Keyboard and PS2 Mouse Controller
o   Supports up to 512 KB ROM Size Decoding
o   PMU Features
    - Full Support for ACPI and OS Directed Power Management to meet 
      system requirement of PC98/PC99
    - Full Support for Instantly Available PC feature
    - CPU SMM Legacy Mode and SMI Feature Supported
    - Full Support for Clock Control Functions of both Pentium and 
      Pentium II CPUs.
    - Supports I/O Trap for I/O Restart Feature
    - PMU Operation States:
      1. G0 State
       - On
       - Standby Mode
      2. G1 State (Suspend Mode 1)
       - S1 State (Power On Suspend)
       - S3 State (Suspend To RAM)
       - S4 State (Suspend To DISK)
      3. G2 State (Suspend Mode 2)
       - S5 State (Soft-Off)
      4. G3 State (Mechanical-Off)
    - APM State Detection and Control Logic Supported
    - Global and Local Device Power Control Logic
    - 10 Monitor Timers: Standby/ APMA ~D/ Global-Display/ HDD A~B/ 
      SIO & Audio/ GPIO.
    - 2 Low Battery timers supported.
    - Provides System Activity and Display Activity Monitoring, 
      including
      - Video
      - Audio
      - Hard Disk
      - Floppy Disk
      - Serial Ports
      - Parallel Port
      - Keyboard
      - 4 Programmable I/O Group
      - 2 Programmable Memory Space
    - Provides Hot Plugging Events Detection
      - Docking Insert
    - Multiple External Wakeup Events of Standby Mode (G0)
      - Power Button
      - Sleep Button
      - Modem Ring
      - RTC Alarm
      - DRQ2
    - Resume Events detected Wake Up from Suspend Mode (G1, G2)
      - 9 resume events supported.
      - Power Button
      - Sleep Button
      - RTC Alarm
      - PCI PMEJ Signal
      - Modem Ring
      - USB Events
      - AC’97
      - Hotkey KBD & MS
      - IRQ 1 & 12
    - CLKRUN# Function Supported for PCI Mobile Design Guide Ver1.1
    - Thermal Alarm Supported
    - Clock Generator Control Logic Supported
      - CPUCLK Stop Control
      - PCICLK Stop Control
    - L2 Cache Power Down Control Logic Supported
    - Up to 25 Run Time Events Supported (included 8 Extended Run Time
      Events).
    - Up to 12 General Purpose Input Signals, Up to 1 5 General 
      Purpose Output Signals and up to 30 General Purpose Input/Output
      Signals
    - 16 Extended General Purpose Input Signals, 16 Extended General 
      Purpose Output Signals, and 8 Extended Run Time Events 
      supported.
    - All Registers Readable/Restorable for Proper Resume from Suspend
      State
    - Hotkey for Power on Button Function through Keyboard or Mouse
    - Supports Power Loss Recovery
    - Watch Dog Timer for
      - Set a Bit in Register
      - Generate an SMI#/SCI/NMI/INIT
      - Generate System Reset
o   Built-in PCI IDE Controller
    - Supports Ultra DMA Mode Transfers up to Mode 4 Timing (33/66 
      Mbps)
    - Supports PIO Modes up to Mode 4 Timings, and Multiword DMA Mode 
      0,1,2 with Independent Timing of up to 4 Drives
    - Integrated 16 x 32-bit Read Ahead & Posted Write Buffers for 
      each channel (Total: 32 DWords)
    - Dedicated Pins of ATA Interface for each Channel
    - Supports Tri-state IDE Signals for Swap Bay
    - Supports Command Queue IDE enhancement
o   USB Interface
    - One Root Hub with four USB Ports Based on OpenHCI 1.0a 
      Specification
    - Supports FS (12Mbits/sec) and LS (1.5Mbits/sec) Serial Transfer
    - Supports Legacy Keyboard and Mouse Software with USB-based 
      Keyboard and Mouse
o   SMBus Interface
    - System Management Bus Interface Meets the V1.0 Specification
    - SMBALERT# Support
    - I2C protocol Support
o   Hotkey for Power on Button Function through Keyboard
o   Super I/O Interface
    - Supports Windows Plug-and-Play
    - Supports 2 Serial/ 1 Parallel/ FDC Functions
    - Supports 16-bit Address Decoder
    - 2.88 MB (Formatted) Floppy Disk Controller
     - Software Compatible with 82077 and Supports 16-byte Data FIFOs
     - High Performance Internal Data Separator
     - Supports Standard 1 Mbps/ 500 Kbps/ 300 Kbps/ 250 Kbps Data 
       Transfer Rate
     - Supports 3 modes of 3.5“ FDD ( 720KB / 1.2 MB / 1.44 MB )
     - Swappable Drives A and B
     - Programmable 7-bit I/O Base Address
    - Various Mode Parallel Port
      - Supports ECP/ EPP / PS/2 / SPP and 1284 Compliance
      - Standard Mode
      - Programmable 8-bit I/O Base Address
      - Multiplexing of FDC Signals through Parallel Port Pins
      - 12 IRQ Channel Options
      - 4 8-bit DMA Channel Options
      - IBM PC/XT, PC/AT and PS/2 Compatible Bi-directional Parallel 
        Port
      - Enhanced Mode
        - Enhanced Parallel Port (EPP) Compatible
        - EPP is Compatible with EPP1.9 (IEEE 1284 Compliant ), also 
          supports EPP1.7 of Xircom Specification
      - High Speed Mode
       - Microsoft and Hewlett Packard Extended Capabilities Port 
         (ECP) Compatible
       - IEEE1284 Compatible ECP 
       - Includes Protection Circuit against damage caused when 
         printer is powered up, or operated at higher voltages
    - Serial Ports
      - Three High Performance 16450/16550 Compatible UARTs with 
        Send/Receive 16-byte FIFOs
      - Programmable Baud Rate Generator
      - Wireless Communications
      - Dedicated pins and COM Port for Infrared Transmission
      - Supports IrDA 1.0 (SIR) and IrDA 1.1 (MIR and FIR)
      - Supports Sharp-IR
      - MIDI (Musical Instrument Digital Interface) Compatible
      - High Performance Power Management for FDC, UART and Parallel 
        Port
      - Option between Programmable 7-bit I/O Base Addresses, 12 IRQs, 
        and 4 DMA Channels for each Device
o   Audio System
    - Fully Plug-and-Play PCI controller and software
    - PCI 2.2 compliant bus master optimized for multiple stream 
      operation
    - On-chip per voice cache minimizes PCI bandwidth
    - Hardware multi-channel digital mixer
    - 32 voices polyphony wavetable synthesizer supports all 
      combinations of stereo/mono, 8-/16-bits, and signed/unsigned 
      samples.
    - Per channel for wavetable synthesis with envelop, pitch shift,
      tremolo and vibrato
    - DLS1-compliant Downloadable Samples support
    - DirectMusic with unlimited downloadable samples in system memory
    - Legacy game audio with SoundBlaster Pro/16 compatibility
    - Legacy game FM and wave table synthesis supported
    - MPU-401 compatible MIDI I/O with FIFO
    - AC97 2.1 support with full duplex, independent sample rate
      converter for recording and playback
    - On-chip sample rate converter ensures all internal operation at 
      48KHz
    - High precision internal 26 bit digital mixer with 20 bit digital
      audio output
    - Microsoft WDM streaming architecture compliant and "Re-routable 
      endpoint" support
    - 32-voices DirectSound channels
    - 16-voices DirectSound3D accelerator with IID, ITD and Doppler 
      effect on 3D positional audio buffers
    - DirectSound accelerator with volume, pan and pitch shift control
      on streaming or static buffers
    - DirectInput support with digital enhanced game port enables an
      analog joystick to emulate digital joystick performance using 
      DirectInput driver. This eliminates up to 12% CPU overhead 
      wasted on joystick polling.
    - DirectX timer for video/audio synchronization
    - Hardware digital volume control
o   Software Modem Interface
    - The M1535 will provide the AC’97 2.1 compliant digital 
      controller interface for third parties (such as the AMC Codec’s 
      vendor) to enable the software modem solution.
    - 4 separate telephony bus master channels. One for modem output, 
      one for mode minput, one for handset input, and one for handset
      output.
    - AC’97 2.1 Modem variable sample rate support for "On Demand" 
      sample transport scheme.
    - AC’97 2.1 GPIO pin status and control support.
    - Power Management and wake-up event support
    - Caller ID string transmission via AC-link support
o   352-pin (27mmx27mm) BGA Package

**
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**82495XP/490XP Cache Controller / Cache RAM (for i860)       06/05/91
***Notes:...
***Info:...
***Features:...
**82496/491     Cache Controller / Cache RAM (for P5 Pentium) 03/22/93...
**82497/492   Cache Controller / Cache RAM (for P54 Pentium)    <Nov94...
**82498/493   Cache Controller / Cache RAM (for P54 Pentium)    <Nov94...
**
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**450NX  (?)            06/29/98:...
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