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**82C100 IBM PS/2 Model 30/Super XT ?
***Info:
The 82C100 is a single chip implementation of most of the system logic
necessary to implement a super XT compatible system with PS/2 Model 30
functionality using either an 8086 or 8088 microprocessor. The 82C100
can be used with either 8 or 16-bit microprocessors. The 82C100
includes features which will enable the PC manufacturer to design a
super PS/2 Model 30/XT compatible system with the highest performance
at 10 MHz zero wait state system with an 8086, the highest
functionality With dual clock and 2.5 MB DRAM (with integrated
Extended Memory System control logic), the lowest power implementation
by utilizing the on-chip power management features and the highest
inte- gration with the lowest component count SMT design.
The 82C100 can be combined with CHIPs‘ 820601 Multifunction Controller
and 82C451 VGA Graphics Controller to provide a high performance, high
integration PS/2 Model 30 type system.
The 82C100 supports most of the peripheral functions on the P8/2 Model
30 planar board: 8284 compatible clock generator with the option of 2
independent oscillators. 8288 compatible bus controller, 8237 comp-
atible DMA controller, 8259 compatible interrupt controller, 8254
compatible timer/counter, 8255 compatible peripheral I/O port, XT Key-
board interface, Parity Generation and Checking for DRAM memory and
memory controller for DRAM and SRAM memory sub-systems.
The 82C100 enables the user to add P8/2 Model 30 superset
functionality on the planar board: dual clock with synchronized
switching between the two clocks, built-in Lotus-Intel-Microsoft (LIM)
EMS support for up to 2.5 Megabytes of DRAM and power management
features for SLEEP mode as well as SUSPEND/RESUME Operations. The
SLEEP and SUSPEND/RESUME features help in preserving the battery life
in laptop portable applications.
The 82C100 Supports a very flexible memory architecture. For systems
with DRAMs, the DRAM controller supports 64K, 256K and 1M DRAMs. These
DRAMs can be organized in four banks of up to a maximum of 2.5 MB on
the planar board. The 2.5 MB memory can be implemented with 2 banks
of 1M x 1 DRAMs, partitioned locally as 640KB of real memory and
1.875MB of EMS memory, For systems which require low operating power
and minimum standby power dissipation, the chips provide the decode
logic which in conjunction with external decoders allows selection of
up to 640KB of static RAM. This option is useful in laptop portable
applications.
The 82C100 is packaged in a 100-pin plastic flatpack.
***Configurations:...
***Features:...
**82C110 IBM PS/2 Model 30/Super XT ?...
**82C235 Single Chip AT (SCAT) c89...
**82C836 Single Chip 386sx (SCATsx) <91...
**F8680/A PC/CHIP Single-Chip PC c93...
**
**Support Chips:
**64200 (Wingine) High Performance 'Windows Engine' c:Oct91...
**82C206 Integrated Peripheral Controller c86...
**82C601/A Single Chip Peripheral Controller <08/30/90...
**82C607 Multifunction Controller <Jun88...
**82C710 Universal Peripheral Controller c:Aug90...
**82C711 Universal Peripheral Controller II c:Jan91...
**82C712 Universal Peripheral Controller II c:Jan91...
**82C721 Universal Peripheral Controller III c:May93...
**82C735 I/O Peripheral Controller With Printgine c:Jul93...
**82C835 Single CHIP 386sx AT Cache Controller c:Apr91...
**F87000 Multi-Mode Peripheral Chip 11/23/93...
**Other:...
**Disk:...
**Video:...
*Contaq . . . . . [no datasheets, some info]...
*Efar Microsystems [no datasheets, some info]...
*ETEQ...
*Faraday...
*Forex . . . . . . [List only, no datasheets found]...
*Intel...
**82495DX/490DX DX CPU-Cache Chip Set <Sep91
***Notes:...
***Info:...
***Configurations:...
***Features:...
**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...
**IBM AT: MC146818 Real Time Clock <84
***Info:...
***Versions:...
***Features:
o Low-Power, High-Speed, High-Density CMOS
o Internal Time Base and Oscillator
o Counts Seconds, Minutes, and Hours of the Day
o Counts Days of the Week, Date, Month, and Year
o 3 V to 6 V Operation
o Time Base Input Options: 4.194304 MHz, 1.048576 MHz, or 32,768 kHz
o Time Base Oscillator for Parallel Resonant Crystals
o 40 to 200 uW Typical Operating Power at Low Frequency Time Base
o 4.0 to 20 mW Typical Operating Power at High Frequency Time Base
o Binary or BCD Representation of Time, Calendar, and Alarm
o 12- or 24-Hour Clock with AM and PM in 12-Hour Mode
o Daylight Savings Time Option
o Automatic End of Month Recognition
o Automatic Leap Year Compensation
o Microprocessor Bus Compatible [this means absolutely nothing]
o MOTEL Circuit for Bus Univerality
o Multiplexed Bus for Pin Efficiency
o Interfaced with Software as 64 RAM Locations
o 14 Bytes of Clock and Control Registers
o 50 Bytes of General Purpose RAM
o Status Bit Indicates Data Integrity
o Bus Compatible Interrupt Signals (IRQ)
o Three Interrupts are Separately Software Maskable and Testable
Time-of-Day Alarm, Once-per-Second to Once-per-Day
Periodic Rates from 30.5 us to 500 ms
End-of-Clock Update Cycle
o Programmable Square-Wave Output Signal
o Clock Output May Be Used as Microprocessor Clock Input
At Time Base Frequency /1 or /4
o 24-Pin Dual-In-Line Package
*OPTi...
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