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**82489DX Advanced Programmable Interrupt Controller 10/12/92
***Notes:...
***Info:
1.0 INTRODUCTION
The 82489DX Advanced Programmable Interrupt Controller provides
multiprocessor interrupt management, providing both static and dynamic
symmetrical interrupt distribution across all processors.
The main function of the 82489DX is to provide interrupt management
across all processors. This dynamic interrupt distribution includes
routing of the interrupt to the lowest-priority processor. The 82489DX
works in systems with multiple I/O subsystems, where each subsystem
can have its own set of interrupts. This chip also provides
inter-processor interrupts, allowing any processor to interrupt any
processor or set of processor. Each 82489DX I/O init interrupt input
pin is individually programmable by software as either edge or level
triggered. The interrupt vector and interrupt steering information an
be specified per pin. A 32-bit wide timer is provided that can be
programmed to interrupt the local processor. the timer can be used as
a counter to provide a time base to software running on the processor,
or to generate time slice interrupts locally to that processor. the
82489DX provides 32-bit software access to its internal
registers. Since no 82489DX register read have any side effects, the
82489DX registers can be aliased to a user read-only page for fast
user access (e.g., performance monitoring timers).
The 82489DX supports a generalized naming/addressing scheme that can
be tailored by software to fit a variety of system architectures and
usage models. It also supports 8259A compatibility by becoming
virtually transparent with regard to an externally connected 8259A
style controller, making the 8259A visible to software.
***Versions:...
***Features:...
**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...
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*VIA...
*VLSI...
**VL82C031/032/033 PS/2 Model 30-compatible chip set c88
***Notes:...
***Info:
The chip set integrates logic on PS/2 Model 30-Compatible systems to
the point of reducing the printed circuit board device count by half
when memories are excluded. Further, while offering complete
compatibility with the PS/2 Model 30-Compatible system, the VLSI chip
set improves system performance by allowing 10 MHz operation with no
"wait states" (using 150 ns DRAMs), supports an additional 8M bytes of
memory using EMS (Expanded Memory Specification) 4.0, and controls
system speed as necessary for optimum performance.
A third device the VL82C037 VGA Video Graphics Controller, is also
used in the PS/2 Model 30-Compatible system and provides high
resolution graphics of up to 800 x 600 pixels with 16 colors. Graphic
capabilities with this resolution are usually found only on more
expensive systems.
The VL82C031 provides the PS/2 Model 30-Compatible system with dual
speed control, 8 MHz or 10 MHz, to operate the system at peak
performance. The device also controls memory, I/O, parity, address
paths, and data paths as well as handling four channels of direct
memory access. The VL82C031 is available from VLSI Technology, Inc. in
an industry-standard plastic 100-pin flatpack.
The CMOS VL82C031 is the System Controller device in the two-chip VLSI
PS/2 Model 30-Compatible chip set.
The chip can be brought to a power-down mode to conserve power
dissipation when static RAM is used. The chip can then be woke up from
power-down mode by an external interrupt.
The VL82C032 provides the PS/2 Model 30-Compatible system with control
of both the keyboard and the pointing device ("mouse"), control of two
serial communi- cation channels, a real-time clock, as well as
controlling both the disk storage and display functions. It also
provides the chip select logic for the functions in controls. The
VL82C032 is available from VLSI Technology, Inc. in an industry-
standard plastic 100-pin flatpack.
The CMOS VL82C032 is the Input/Output Controller device in the
two-chip VLSI PS/2 Model 30-compatible chip set.
[The following text is from the '88 version:]
The VL82C033/OTi-033 is the Floppy Disk Controller and Data Separator
device in the three chip VLSI/OTi PS/2 Model 30-Compatible chip
set. The other two devices are the VL82C031/OTi-031 System Controller
and the VL82C032/OTi-032 I/O Controller.
The VL82C033/OTi-033 provides the PS/2 Model 30-Compatible system with
a uPD 756A- compatible floppy disk controller function, a precision
analog data separator, an internal phase comparator, the required
filters, as well as a voltage controlled oscillator (VCO). The
VL82C033/OTi-033 provides the system with three floppy disk rates:
250K bits-per-second, 300K bits-per-second, and 500K bits-per- second.
the VL82C033/OTi-033 is available form both VLSI Technology, Inc. and
Oak Technology, Inc. in an industry-standard plastic 48 pin DIP.
***Configurations:...
***Features:...
**VL82C286-SET TOPCAT 286/386SX PC/AT-Compatible Chip Set ?...
**VL82C386-SET TOPCAT 386DX PC/AT-Compatible Chip Set ?...
**VL82C386sx-SET TOPCAT 286/386SX PC/AT-Compatible Chip Set ?...
**VL82C310 SCAMP-LT ?...
**VL82C311 SCAMP-DT ?...
**VL82C311L SCAMP-DT 286 ?...
**VL82C312 SCAMP Power Management Unit (PMU) ?...
**VL82C315A SCAMP II, Low-Power Notebook Chipset ?...
**VL82C322A SCAMP II, Power Management Unit (PMU) ?...
**VL82C316 SCAMP II, PC/AT-Compatible System Controller ?...
**VL82C323 SCAMP II, 5 Volt Power Management Unit (PMU) ?...
**VL82C380 Single chip 386DX PC/AT Controller +on-chip cache ?...
**VL82C325 VL82C386SX System Cache controller ?...
**VL82C335 VL82C386DX System Cache ctrl. [no d.sheet] ?...
**VL82C315A/322A/3216 Kodiak 32-Bit Low-Voltage Chip Set ?...
**VL82C420/144/146 SCAMP IV [no datasheet, some info] c93...
**VL82C480 System/Cache/ISA bus Controller ?...
**VL82C481 System/Cache/ISA bus Controller c92...
**VL82C486 Single-Chip 486, SC486, Controller ?...
**VL82C425 486 Cache controller ?...
**???????? Cheetah 486, PCI [no datasheet] ?...
**VL82C3216 Bus Expanding Controller Cache with write buffer ?...
**VL82C521/522 Lynx/M ?...
**VL82C530 Eagle Ð c95...
**VL82C541/543 Lynx c95...
**VL82C591/593 SuperCore 590 c94...
**VL82C594/596/597 Wildcat c95...
**I/O Chips:
**VL82C106 Combination I/O chip ?...
**VL82C107 SCAMP Combination I/O chip ?...
**VL82C108 TOPCAT Combination I/O chip ?...
**VL82C110 Combination I/O chip ?...
**VL82C113 SCAMP Combination I/O chip ?...
**VL82C114 Combination I/O chip ?...
**Video: ...
**Disk:...
**Modems:...
**Other:...
**Not sure if they actually exist...
*Western Digital...
*Winbond...
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