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**82430HX PCIset (Pentium) HX (Triton II) (82439HX) 02/12/96
***Notes:...
***Info:...
***Configurations:...
***Features:
o Supports All 3V Pentium Processors
o Dual Processor Support
o PCI 2.1 Compliant
o Integrated Second-Level Cache Controller
- Direct Mapped Organization
- Write-Back Cache Policy
- Cacheless, 256 KB, and 512 KB
- Pipelined Burst SRAMs
- Cache Hit Read/Write Cycle Timings at 3-1-1-1
- Back-to-Back Read Cycles at 3-1-1-1-1-1-1-1
- Integrated Tag/Valid Status Bits for Cost Savings and
Performance
- Optional 512-MB DRAM Cacheability Limit
- Supports 5V SRAMs for Tag Address
o Integrated DRAM controller
- 4-MB to 512-MB Main Memory
- 64-Mb DRAM Technology Support
- 8-QWord Deep Merging DRAM Write Buffer
- Enhanced EDO/Hyper Page Mode DRAM; 4-2-2-2 Beads and x-2-2-2
Writes at 60 MHz; 5-2-2-2 Reads and x-2-2-2 Writes at 66 MHz
- 8 RAS Lines
- Integrated Programmable-Strength Memory Address Butters
- CAS-Before-RAS Refresh
o Optional Parity
o Single 324-Pin BGA Package
o Optional Error Checking and Correction (ECC)
- Superior DRAM Data integrity
- Single Bit Error Correction, Multi-Bit Error Detection plus
Nibble
Failure Detection ECC Code
- Single and Multi-Bit Error Reporting
- Virtual Swapable Bank Support (i.e., can swap out problem banks)
- Merging Write Buffer Eliminates Most Partial Writes Cycles
o Fully Synchronous, Minimum Latency 25/30/33 MHz PCI Bus interface
- Zero Wait State CPU-to-PCI Write Timings (no IRDY stall) for
Superior Graphics Performance
- Enhanced CPU-to-PCI Read Latencies for Superior Graphics/PIO
Performance
- 21-DWord PCI-DRAM Post Buffer
- 22-DWord PCI-to-DRAM Read Prefetch Buffer
- Write-Back Merging for PCI to DRAM Writes
- Write-Back Forwarding for PCI to DRAM Reads
- Pipelined Snoop Ahead
- Multi-Transaction Timer to Support
- Multiple Short PCI Transactions Within the Same PCI Arbitration
Cycle
o Supports the Universal Serial Bus (USB)
o Supported Kits
- 82439HX ISA Kit (Txc, PIIX3)
- 82439HX ISA/DP Kit (TXC, PIIX3, IOAPIC)
**82430VX PCIset (Pentium) VX (Triton II) (82437VX/82438) 02/12/96...
**82430TX PCIset (Pentium) TX (Triton II) (82439TX) 02/17/97...
**82450KX/GX PCIset (Pentium Pro) KX/GX (Mars/Orion) 11/01/95...
**
**Support Chips:
**82091AA Advanced Interface Peripheral (AIP) c93...
**8289 Bus Arbiter (808x) c79...
**82289 Bus Arbiter for iAPX 286 Processor Family c83...
**82258 Advanced Direct Memory Access Coprocessor(ADMA) 01/01/84...
**82335 High-Integration Interface Device For 386SX c:Nov88...
**82360SL I/O Subsystem 10/05/90...
**82370 Integrated System Peripheral (for 82376) c:Oct88...
**82371FB/SB PCI ISA IDE Xcelerator 82371FB/82371SB (PIIX/3) 01/31/95...
**82371MX Mobile PCI I/O IDE Xcelerator (MPIIX) 11/01/95...
**82371AB PCI-TO-ISA / IDE Xcelerator 82371AB (PIIX4) 02/17/97...
**82374/82375 PCI-EISA Bridge (82374EB/82375EB, 374SB/375SB) c:Mar93...
**82378 System I/O (SIO) (82378IB and 82378ZB) c:Mar93...
**82379AB System I/O-APIC (SIO.A) <Dec94...
**82380 32-bit DMA Controller w/ Integrated Peripherals 02/01/87...
**82380FB/AB PCIset: 82380FB Mobile PCI-to-PCI Bridge(MPCI2) 02/17/97...
**82384 Clock Generator and Reset Interface c86...
**82385 32-bit Cache Controller for 80386 09/29/87...
**82385SX 32-bit Cache Controller for 80386SX 01/25/89...
**82395DX High Performance Smart Cache 06/18/90...
**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...
**HT18 80386SX Single Chip c:Sep91
***Info:
The HT18 is an advanced PC/AT compatible, single-chip 80386SX design
solution. This highly integrated single chip allows simple, low cost
system design options while featuring high performance, low power
consumption, and minimum board space requirements. Advanced memory
management features include support for page mode, with 2 or 4-way
interleaving in both pipelined and non-pipelined modes(18A/B only).
Extended Hardware EMS options include dual sets of 32 registers with
multiple context operation. Revisions A/B support 256K and 1M DRAMs in
1 by 1, 1 by 4, and 1 by 9 device configurations. Rev C supports 4M
devices, as well. A Shadow RAM option for System Video BIOS and dual
or single system ROM BIOS support adds to overall design versatility.
A complete PC/AT compatible system with advanced features may be
implemented with minimal external support logic. The HT18 performs all
CPU and peripheral support functions in a single chip. Integrated
device functions include DMA Controllers, a Memory Mapper, Timers,
Counters, Interrupt Controllers, a Bus Controller and all supporting
circuitry for PC core logic requirements. An asynchronous AT Bus clock
allows for a constant 8MHz Bus clock rate for highest bus device
compatibility as defined in IEEE Spec P996. This device is packaged in
a 208-pin Plastic Quad Flat Pack combining several external buffers
into this space saving solution.
***Configurations:...
***Features:...
**HT21 386SX/286 Single Chip (20 MHz) c:Aug91...
**HT22 386SX/286 Single Chip (25 MHz) c:Sep91...
**HT25 3-volt Core Logic for 386SX c:Dec92...
**HT35 Single-Chip Peripheral Controller [partial info] ?...
**HTK320 386DX Chip Set c:Sep91...
**HTK340 "Shasta" 486 Chip Set c:Jun92...
**Support Chips:
**HT44 Secondary Cache c:Jun92...
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