[Home] [This version is outdated, a new version is here]
*Title...
*Search:...
*Read Me/FAQ/General Info...
*_IBM...
*ACC Micro...
*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...
**82496/491 Cache Controller / Cache RAM (for P5 Pentium) 03/22/93
***Notes:...
***Info:...
***Configurations:...
***Features:...
**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...
**HTK340 "Shasta" 486 Chip Set c:Jun92
***Notes:...
***Info:
The HTK340 chip set is a two chip, high performance, cost-effective
solution for the 80486SX DX, and DX2 processing environments. In its
minimum configuration, this highly integrated chip set requires only
four external TTL devices to implement a fully compatible IBM PC/AT
system at speeds up to 33MHZ.
The HTK340 is based upon Headland's HTK320 Bus Architecture and
consists of the HT321-ISA Bus Controller and the HT342-Memory Control
Unit (MCU). Both chips are packaged in 184 pin plastic quad flat
packs.
The HTK340 is unique in that it provides performance approximating
that of large secondary cache systems, including the highest
performance write back cache architectures, without any external
cache. Secondary cache solutions should be considered in applications
that make use of multi-tasking and large model operating systems. The
Headland HT44 secondary cache was designed to meet the cost and
performance objectives for these applications. The key to this level
of performance is the 4-level deep write buffer, which includes byte
gathering for up to 32-bit DRAM writes.
Due to the effectiveness of the primary cache internal to the 80486
most of the bus activity in a PC/AT compatible environment consists of
writes. Indeed, this write activity consists almost exclusively of
writes of either bytes or Words (16 bit entities). In addition, much
of this write activity is into sequential memory locations. The byte
gathering feature of the buffer has the effect of reducing the number
of memory accesses required. Since the 80486 can always write into the
buffer with zero wait states (assuming the buffer is not full), and
the buffer can empty faster than it can be filled for most write
activity, the net effect is that the writes from the CPU never cause a
wait state.
The HTK340 can support Peripheral Devices such as VGA or SCSI on the
local processor bus, or any other devices that are designed to work
within the 80486 bus protocol and timing. By eliminating the ISA
backplane bottleneck, system designers can greatly improve the
performance of functions such as graphics generation and disk access.
The HTK340 supports up to 4 banks of DRAM, configurable as 1-4
banks. This flexible memory architecture allows for any memory type,
from 256K to 16M devices, in any bank. Maximum system performance is
achieved from the DRAM banks through various means, including
interleaving of memory banks and/or paging, and CAS before RAS
refresh. The memory can also be tuned to maximum potential through the
use of extensive DRAM timing control registers. These controls
include: precharge time, access time on reads, active time on writes,
as well as CAS and RAS delays. In addition, further system perfor-
mance is gained by separate timing parameters on the read and write
cycles which allow system designers to take maximum advantage of the
pipelined structure of the chip set.
The HTK340 also supports extensive mapping registers, which allow
system designers to take maximum advantage of system memory. The chip
set supports Shadow/Remap in 16K blocks between the 640K and 1M
boundaries, and eliminates the requirement for external decoding logic
by supporting 26 programmable non-cache regions. Devices which meet
HTK340 local bus requirements may be implemented without external
TTL. The mapping structure of the HTK340 provides for a single 8-bit
EPROM to be used for both the System and Video BIOS, further reducing
system chip count and cost.
***Configurations:...
***Features:...
**Support Chips:
**HT44 Secondary Cache c:Jun92...
**Other:...
*HMC (Hulon Microelectronics)...
*Logicstar...
*Motorola...
*OPTi...
**82c465MV/A/B Single-Chip Mixed Voltage Notebook Solution <Oct97
***Info:...
***Configurations:...
***Features:...
**82C481?/482? HiP/486 & HiB/486 [no datasheet] Oct89...
**82C491/392 486WB PC/AT Chipset <04/21/91...
**82C493/392 486SXWB <10/21/91...
**82C495SX/392SX LCWB PC/AT chipset [no datasheet] ?...
**82C495SLC DXSLC 386/486 Low Cost Write Back c:92...
**82C495XLC PC/AT Chip Set c:93...
**82c496A/B DXBB PC/AT Chipset <Mar92...
**82C496/7 DXBB PC/AT Chipset (Cached) <01/16/92...
**82C498 DXWB PC/AT chipset [no datasheet] ?...
**82C499 DXSC DX System Controller c:93...
**82C546/547 Python PTM3V c:94...
**82C556/7/8 Viper [no datasheet] ?...
**82C556/7/8N Viper-N Viper Notebook Chipset <05/25/95...
**82C556M/7M/8E Viper-N+ Viper Notebook Chipset c:96...
**82C566/7/8 Viper-Max Chipset Scalable MultiMedia PC Solution ?...
**82C571/572 486/Pentium c:93...
**82C576/7/8 Viper Xpress [no datasheet] ?...
**82C576/8/9 Viper XPress+ [no datasheet, some info] <01/16/97...
**82C596/597 PTMAWB Pentium Adaptive Write-back (Cobra) c:93...
**82C650/1/2 Discovery (Pentium Pro) [no datasheet] ?...
**82C681/2/6/7 386/486WB EISA c:92...
**82C683 386/486AWB EISA [no datasheet] ?...
**82C693/6/7 Pentium uP Write Back Cache EISA c:93...
**82C700 FireStar c:97...
**82C701 FireStar Plus c:97...
**82C750 Vendetta [no datasheet] ?...
**82c801 SCWB2 DX Single Chip Solution c:92...
**82C802 SCWB2 PC/AT Single Chip [no datasheet] ?...
**82C802G/GP System/Power Management Controller (cached) c:93...
**82C895 System/Power Management Controller (cached) c:Sep94...
**82C898 System/Power Management Controller (non-cache)c:Nov94...
**
**Support Chips:
**82C601/2 Buffer Devices <Nov94...
**82C822 PCIB (VLB-to-PCI bridge) c:94...
**Other:
OPTi 82C200 - ChromaCast LCD-VGA chipset
OPTi 82C205 - LCD panel controller / scalar
OPTi 82C264 - 2D VGA controller
OPTi 82C265 - Video ????????????????????????????
OPTi 82C268 - Video ????????????????????????????
OPTi 82C611 - EIDE VLB
OPTi 82C611A - EIDE VLB
OPTi 82C621 - PCI-to-IDE controller
OPTi 82C621A - PCI-to-IDE controller
OPTi 82C824 - FireFox PCI to PCMCIA Controller
OPTi 82C825 - FireBridge II PCI to PCMCIA Controller
OPTi 82C814 - Docking Station Controller for laptops (PCI-to-PCI bridge)
OPTi 82C842 - PCI-to-IEEE 1393 FireWire
OPTi 82C832 - ?????????????????????????????????????????
OPTi 82C861 - PCI-to-USB Bridge c1997
OPTi 82C862 - PCI-to-USB Bridge 4x port
OPTi 82C863 - PCI-to-USB Bridge 2x port
OPTi 82C871 - PCI-to-USB Bridge + Sound Blaster compatibility and USB 2.0
OPTi 82C916 - Audio, ISA, serial CODEC) used in combination with Vendetta chipset 82C750
OPTi 82C924 - Audio, ISA
OPTi 82C925 - ISA Audio Controller (replaces the 924)
OPTi 82C928 - (MAD16) ISA Audio Controller (Emulates Sound Blaster Pro) c1993
OPTi 82C929 - (MAD16 Pro) ISA Audio Controller (Emulates Sound Blaster Pro) c1994
OPTi 82C930 - ISA Audio Controller (Emulates Sound Blaster Pro, AdLib)
OPTi 82C931 - ISA Audio controller (Emulates Sound Blaster Pro, AdLib)
OPTi 82C933 - Audio ?????????????????????????????
OPTi 82C935 - EV1935 ECTIVA MachOne PCI Audio
OPTi 82C941 - Wavetable chip, has something to do with 82C930
OPTi 82C950 - (MAD32) Audio/Modem controller (Emulates Sound Blaster Pro) c1994
OPTi 92C160 - Clock Generator for 92C168
OPTi 92C168 - LCD VGA controller c1993
OPTi 92C178 - LCD VGA controller with blt c1993
OPTi 92C264 - 2D VGA controller
-------------------------------------------------
*PC CHIPS/Amptron/Atrend/ECS/Elpina/etc...
*SIS...
*Symphony...
*TI (Texas Instruments)...
*UMC...
*Unresearched:...
*VIA...
*VLSI...
*Western Digital...
*Winbond...
*ZyMOS...
*General Sources:...
(c) Copyright mR_Slugs Warehouse - All rights Reserved