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IBM25PPC405GPR-3BB266C 参数 Datasheet PDF下载

IBM25PPC405GPR-3BB266C图片预览
型号: IBM25PPC405GPR-3BB266C
PDF下载: 下载PDF文件 查看货源
内容描述: [RISC Microprocessor, 32-Bit, 266MHz, CMOS, PBGA456, 35 MM, PLASTIC, BGA-456]
分类和应用: 时钟外围集成电路
文件页数/大小: 56 页 / 1071 K
品牌: IBM [ IBM ]
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Preliminary  
PowerPC 405GPr Embedded Processor Data Sheet  
- PCI interrupt acknowledge  
- PCI special cycle  
• Supports PCI target access to all PLB address spaces  
• Supports PowerPC processor boot from PCI memory  
SDRAM Memory Controller  
The PPC405GPr Memory Controller core provides a low latency access path to SDRAM memory. A variety of  
system memory configurations are supported. The memory controller supports up to four physical banks. Up  
to 256MB per bank are supported, up to a maximum of 1GB. Memory timings, address and bank sizes, and  
memory addressing modes are programmable.  
Features include:  
• 11x8 to 13x11 addressing for SDRAM (2- and 4-bank)  
• 32-bit memory interface support  
• Programmable address compare for each bank of memory  
• Industry standard 168-pin DIMMS are supported (some configurations)  
• Both 266 and 333 MHz PPC405GPrs support up to 133 MHz memory with PC-133 support  
• 4MB to 256MB per bank  
• Programmable address mapping and timing  
• Auto refresh  
• Page mode accesses with up to 4 open pages  
• Power management (self-refresh)  
• Error checking and correction (ECC) support  
- Standard single-error correct, double-error detect coverage  
- Aligned nibble error detect  
- Address error logging  
External Peripheral Bus Controller (EBC)  
• Supports eight banks of ROM, EPROM, SRAM, Flash memory, or slave peripherals  
• Up to 66MHz operation  
• Burst and non-burst devices  
• 8-, 16-, 32-bit byte-addressable data bus width support  
• Latch data on Ready  
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