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*_IBM...
*ACC Micro...
**ACC2087    Enhanced Super Chip (486 Single Chip)              <Aug96
***Info:...
***Configurations:...
***Features:
o   Supports Intel iDX4, AMD AM486, Cyrix 5x86, TI 486s, and IBM Blue 
    Lightning microprocessor with operation up to 50 MHz
o   3.3V / 5.0V mixed voltage system design
o   Level 1 Write Back Cache
o   Level 2 Cache Controller
    - Support either write back or write through implementation
    - Up to 2 MB in cache size
o   High Performance DRAM Controller
    - Supports four banks of 32-bit DRAM, Fast Page Mode only, 
      allowing up to 64 MB memory
o   Integrated Peripheral Controller: 2 x 8237, 2 x 8259, 1 x 8254, 
    1 x 74612
o   Integrated Floppy Disk Controller supports two floppy disk drives
o   Supports one IDE interface
o   Supports two high speed 16C550 compatible UARTs with 16 Byte FIFOs
o   Supports one bi-directional Parallel port with ECP mode
o   Support PPM mode where Floppy Disk Drive can be used on Parallel 
    Port
o   PS/2 compatible Keyboard Controller and Mouse
o   Power Management Control
    - Power-On Suspend
    - Power-Off Suspend
    - Doze / Idle Detection
    - Suspend / resume Button
    - APM support
    - SMM / SMI
    - Stop Clock Protocol
    - Battery monitoring signal and dedicated low-battery warning 
      alarm
o   Supports Flash EPROM
o   Local Bus IDE
o   Fast reset / Fast gate A20 (Port 92)
o   256-pin PQFP device
**ACC2089    486 PCI-based System Super Chip      [no datasheet]     ?...
**ACC2168/GT 32-bit 486 Green System Single Chip  [no datasheet]     ?...
**ACC2178A   32-bit 486 Green System Single Chip  [no datasheet]     ?...
**ACC2268    ?486                                 [no datasheet]     ?...
**ACC????    Maple/Maple-133 486-System-On-Chip   [no datasheet]     ?...
**
**Support Chips:
**ACC2016    Buffer and MUX Logic                                  c96...
**ACC2020    Power Management Chip                                 c92
***info:...
***Versions:...
***Features:
o   Provides eight trigger input channels for monitoring activities 
    such as keyboard, video, hard disk, floppy disk, and user defined 
    device.
o   Provides eight power control outputs
o   Each power control output status can be determined by the 
    combinations of the eight trigger inputs
o   Provides eight user programmable time-out timers.
o   Flexible timer scales:
      2 timers from 1/8 second to 14 seconds
      4 timers from 1 minute to 15 minutes
      1 timer from 2 minutes to 210 minutes
      1 timer from 4 minutes to 7 hours
o   Each trigger input can select one of the two timer scales
o   No glitch CPU clock switching functions
o   Supports CPU clock up to 66 MHz
o   Generates 16 MHz clock for AT Bus
o   Generates 32.768 KHz for both RTC and Ao02020 by using 32.768 KHz 
    crystal
o   Supports Modem ring power-on
o   Supports scheduled power-on
o   Supports cover switch power-down/on
o   Supports Suspend and Resume
o   Provides six operation modes:
      Full Operation mode
      Rest mode
      Standby mode
      Shutdown mode
      Freeze mode
      Off mode
o   Predefined mode transition among Normal Rest. and Standby modes
o   Programmable transitions of operation modes
o   Provides interrupt request for suspend resume operation
o   Interrupt request output can be masked
o   Supports Programmable Slow Refresh in Shutdown and Freeze modes
o   Supports CAS before RAS refresh
o   80-pin QFP

**ACC5500    Multifunction I/O Control Chip for PS2 Model 50/60    c88...
**
**Other chips...
*ALD...
*ALi...
*AMD . . . . . . . [no datasheets, some info]...
*Chips & Technologies...
*Contaq  . . . . . [no datasheets, some info]...
*Efar Microsystems [no datasheets, some info]...
*ETEQ...
*Faraday...
*Forex . . . . . . [List only, no datasheets found]...
*Intel...
**82395SX     Smart Cache                                     12/17/90
***Notes:...
**82396SX     Smart Cache                                     12/17/90...
**82485       Turbo Cache (and 485Turbocache)                      c90...
**82489DX       Advanced Programmable Interrupt Controller    10/12/92...
**82495DX/490DX DX CPU-Cache Chip Set                           <Sep91...
**82495XP/490XP Cache Controller / Cache RAM (for i860)       06/05/91...
**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...
**
**Later chipsets (basic spec):
**440 series:...
**450NX  (?)            06/29/98:...
**?????  (Profusion)    c:99...
**800 series...
*Headland/G2...
*HMC (Hulon Microelectronics)...
*Logicstar...
*Motorola...
*OPTi...
*PC CHIPS/Amptron/Atrend/ECS/Elpina/etc...
*SIS...
*Symphony...
*TI (Texas Instruments)...
*UMC...
*Unresearched:...
*VIA...
*VLSI...
*Western Digital...
*Winbond...
*ZyMOS...
*General Sources:...