The Intel 430TX PCIset (430TX) consists of the 82439TX System Controller (MTXC) and the 82371AB PCI ISA IDE Xcelerator (PIIX4). The 430TX supports both mobile and desktop architectures. The 430TX forms a Host-to-PCI bridge and provides the second level cache control and a full function 64-bit data path to main memory. The MTXC integrates the cache and main memory DRAM control functions and provides bus control to transfers between the CPU, cache, main memory, and the PCI Bus. The second level (L2) cache controller supports a writeback cache policy for cache sizes of 256 Kbytes and 512 Kbytes. Cacheless designs are also supported.
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