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**82420TX/ZX PCIset (for 486) TX (Saturn), ZX (Saturn II) c:Nov92
***Notes:...
***Info:
****General:...
****82424 CACHE AND DRAM CONTROLLER (CDC)
The 82424 Cache DRAM Controller (CDC) integrates the cache and main
memory DRAM control functions and provides the address paths and bus
control for transfers between the Host (CPU/cache), main memory, and
the Peripheral Component Interconnect (PCI) Bus. The Dual-ported
architecture permits concurrent operations on the Host and PCI
Buses. The cache controller supports both write-through and write-back
cache policies and cache sizes from 64 to 512 KBytes. The cache memory
can be implemented using standard asynchronous SRAMs. The dual-ported
main memory DRAM controller interfaces DRAM to the Host Bus and the
PCI Bus. The CDC supports, a two-way interleaved DRAM organization for
optimum performance. Up to eight single sides SIMMs or four dual sided
SIMMs provide a maximum of 160 MBytes of main memory. The CDC is
intended to be used with the 82423 Data Path Unit (DPU). The DPU
provides 32-bit data paths between the Host, main memory, and the
PCI. Together, these two components provide a full function dual-port
data path connection to main memory and form a Host/PCI Bridge.
This data sheet describes the 82424TX, 82424ZX and 82424ZX-50
components. All normal text describes the functionality for all three
components. All features that exist on the 82424ZX and 82424ZX-50 are
shaded as shown below.
----------------------------------------------------------------------
This is an example of what the shaded sections that apply only to
the 82424ZX and 82424ZX-50 components look like.
----------------------------------------------------------------------
All features that exist only on the 82424ZX-50 are shaded as shown
below.
----------------------------------------------------------------------
[ This is an example of what the shaded sections that apply only to ]
[ the 82424ZX-50 component looks like. ]
----------------------------------------------------------------------
****82423 DATA PATH UNIT (DPU)...
***Versions:...
***Configurations:...
***Features:...
**82420EX PCIset (for 486) EX (Aries) (82425EX/82426EX) <Dec94...
**82430LX PCIset (Pentium) LX (Mercury) (82433LX/82434LX) 03/22/93...
**82430NX PCIset (Pentium) NX (Neptune) (82433NX/82434NX) Mar94...
**82430FX PCIset (Pentium) FX (Triton I) (82437FX/82438FX)01/31/95...
**82430MX PCIset (Pentium) MX (Mobile Triton)(82437/438MX)11/01/95...
**82430HX PCIset (Pentium) HX (Triton II) (82439HX) 02/12/96...
**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...
**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
***Notes:...
***Info:...
***Features:...
**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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**UM8881/8886 HB4 PCI Chipset "Super Energy Star Green"[no dsheet]c94
***Notes:...
***Configurations:...
**UM8890 Pentium chipset [no datasheet] ?...
**
**Support Chips:
**UM82152 Cache Controller (AUStek A38152 clone) <91...
**UM82C852 Multi I/O For XT <91...
**UM82C206 Integrated Peripheral Controller <91...
**UM82c45x Serial/Parallel chips ?...
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