Intel 82439HX overview
Intel Corporation 82439HX Microcontroller and Processor, DRAM Controller, 512M X 8, CMOS, PBGA324, BGA-324 Intel 82439HX Chipset | System Controller (TXC) (DRAM Controller, L2 Cache Controller, PCI Bus Addressing) The Intel 430HX PCIset consists of the 82439HX System Controller (TXC) and the 82371SB...
What is Intel 82439HX?
Intel Corporation 82439HX Microcontroller and Processor, DRAM Controller, 512M X 8, CMOS, PBGA324, BGA-324 Intel 82439HX Chipset | System Controller (TXC) (DRAM Controller, L2 Cache Controller, PCI Bus Addressing) The Intel 430HX PCIset consists of the 82439HX System Controller (TXC) and the 82371SB...
Product details
Manufactured byIntel
Product groupModules
DescriptionIntel Corporation 82439HX Microcontroller and Processor, DRAM Controller, 512M X 8, CMOS, PBGA324, BGA-324
Description 1786358629Intel 82439HX Chipset | System Controller (TXC) (DRAM Controller, L2 Cache Controller, PCI Bus Addressing)
OverviewThe Intel 430HX PCIset consists of the 82439HX System Controller (TXC) and the 82371SB PCI I/O IDE Xcelerator (PIIX3). The TXC is a single-chip host-to-PCI bridge and provides the second level cache control and DRAM control functions. The second level (L2) cache controller supports a write-back cache policy for cache sizes of 256 Kbytes and 512 Kbytes. Cacheless designs are also supported. The cache memory is implemented with synchronous pipelined burst SRAMs. An external Tag RAM is used for the address tag and an internal Tag RAM for the cache line status bits. The TXC provides a 64/72-bit data path to main memory and memory sizes up to 512 Mbytes. The DRAM controller provides eight rows and optional DRAM Error detection/correction or parity. The TXC’s optimized PCI interface allows the CPU to sustain the highest possible bandwidth to the graphics frame buffer at all frequencies. Using the snoop ahead feature, The TXC allows PCI masters to achieve full PCI bandwidth. For increased system performance, the TXC contains read prefetch and posted write buffers.
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