类型 | CPU / Microprocessor |
系列 | NEC R4400 |
CPU 编号 |
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频率 | 125 MHz (external) 250 MHz (internal) |
时钟倍频器 | 2, 3, 4, 6 or 8 |
封装 | 447-pin staggered ceramic PGA |
接口 | SPGA447 |
架构 / 微体系结构 | |
制造工艺 | 2.3 million transistors |
数据位宽 | 64 bit |
浮点单元 | Integrated |
1级缓存大小 | 16 KB direct-mapped code cache 16 KB direct-mapped data cache |
2级缓存大小 | External 128 KB - 4 MB |
Physical memory | 64 GB |
Virtual memory | 2 GB (user mode); 2.5 GB (supervisor mode); 4 GB (kernel mode) |
Pipeline | 8-stage |
On-chip peripherals |
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电/热参数 | |
Notes on NEC D30412LRJ-250 | |
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