(China (Mainland))
Product Summary
The GT64120-B-4 provides a single-chip solution for designers building systems with any of the high-performance 64-bit bus MIPS CPUs, including:RM526x, RM527x and RM7000 CPUs from QED; RC4600 through RC5000 CPUs from IDT; Other R5000 compatible CPUs from other vendors. The architecture of the GT64120-B-4 supports several system implementations for different applications and cost/performance points. It is possible to design a powerful system with minimal glue logic, or add commodity logic(controlled by the GT64120-B-4) for differentiated system architectures that attain higher performance. The GT64120-B-4 has a three or four bus architecture: A 64-bit interface to the CPU bus (SysAD bus); A 64-bit interface to the memory and device subsystem; Two dependent 32-bit PCI interfaces or one 64-bit PCI interface. The three/four buses are de-coupled from each other in most accesses. This bus de-coupling allows for concurrent operation of the CPU bus, PCI devices, and accesses to memory. For example, the CPU bus can write to the on-chip write buffer, a DMA engine can move data from SDRAM to its own buffers, and a PCI device can write into an on-chip FIFO- all simultaneously.
Parametrics
Typical System Configuration: (1)Support for RV4700/5260 CPU; (2)Support for 16-bit Devices; (3)Support for 64-bit SDRAM; (4)Two 32-bit PCI buses (3.3 and 5V support).
Features
Features: (1)Integrated system controller with PCI interface for high-performance embedded control applications; (2)75MHz CPU bus frequency; (3)Supports up to four GT–64120 devices on the same SysAD bus; (4)64 byte CPU write posting buffer; (5)CPU address remapping to resources; (6)256KB or 512KB zero-wait state secondary cache support; (7)Backward Software Compatibility with GT-64010A and GT-64011; (8)Supports the VESA Unified Memory Architecture (VUMA) Standard; (9)One 32-bit wide timer/counter, 3 24-bit wide timer/counters.
Diagrams
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Negotiable |
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| Image | Part No | Mfg | Description | |
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Quantity | ||||
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GT64120-B-4 |
Other |
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Data Sheet |
Negotiable |
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