仅对英特尔可见 — GUID: mcn1441777576514
Ixiasoft
存储器模块规范
要实现最佳存储器模块性能,可使用通过片上PLL进行全局时钟布线的存储器模块时钟,并设置为50%的输出占空比。使用 Intel® Quartus® Prime软件对存储器模块时钟方案报告时序。
使用错误检测循环冗余校验(CRC)功能时,fMAX没有降级。
储存器 | 模式 | 性能 | |||
---|---|---|---|---|---|
–E1V, –I1V | –E2V, –E2L, –I2V, –I2L | –E3V, –E3X, –I3V, –I3X | Unit | ||
MLAB | Single port, all supported widths (×16/×32) | 1,000 | 782 | 667 | MHz |
Simple dual-port, all supported widths (×16/×32) | 1,000 | 782 | 667 | MHz | |
Simple dual-port with read-during-write option | 550 | 450 | 400 | MHz | |
ROM, all supported width (×16/×32) | 1,000 | 782 | 667 | MHz | |
M20K Block | Single-port, all supported widths | 1,000 | 782 | 667 | MHz |
Simple dual-port, all supported widths | 1,000 | 782 | 667 | MHz | |
Simple dual-port, coherent read enabled | 1,000 | 782 | 667 | MHz | |
Simple dual-port with the read-during-write option set to Old Data, all supported widths | 800 | 640 | 560 | MHz | |
Simple dual-port with ECC enabled, 512 × 32 | 600 | 480 | 420 | MHz | |
Simple dual-port with ECC, optional pipeline registers enabled, and fast write mode, 512 × 32 | 1,000 | 782 | 667 | MHz | |
Simple dual-port with ECC and optional pipeline registers enabled, with the read-during-write option set to Old Data, 512 × 32 | 1,000 | 750 | 667 | MHz | |
True dual port, all supported widths | 600 | 500 | 420 | MHz | |
Simple quad-port, all supported widths | 600 | 480 | 420 | MHz | |
ROM (single port), all supported widths | 1,000 | 782 | 667 | MHz | |
ROM (dual port), all supported widths | 600 | 500 | 420 | MHz | |
eSRAM 54 55 | Simple dual-port | 200–750 | 200–640 | 200–500 | MHz |
54 eSRAM的输入时钟源一定不要超过20 ps peak-to-peak,1.42 ps RMS at 1e–12 BER,1.22 ps at 1e–16 BER。
55 对于speed grade –3器件,不支持以下时钟频率范围:
- 466.51 MHz – 499.99 MHz
- 233.26 MHz – 249.99 MHz