altera 公司 vii
cyclone ii 设备 handbook, 容积 1
内容
ddr 输入 寄存器 ...................................................................................................................... 9–18
ddr 输出 寄存器 ................................................................................................................... 9–21
双向的 ddr 寄存器 ......................................................................................................... 9–22
Conclusion ............................................................................................................................................ 9–24
文档 修订 history ............................................................................................................... 9–25
部分 iv. i/o standards
修订 history .................................................................................................................................... 9–1
chapter 10. 可选择的 i/o standards 在 cyclone ii 设备
介绍 .......................................................................................................................................... 10–1
supported i/o standards ................................................................................................................... 10–1
3.3-v lvttl (eia/电子元件工业联合会 标准 jesd8-b) .......................................................................... 10–3
3.3-v lvcmos (eia/电子元件工业联合会 标准 jesd8-b) ..................................................................... 10–4
3.3-v (pci 特定的 interest 组 [sig] pci local 总线 规格 修订 3.0) ............. 10–4
3.3-v pci-x ...................................................................................................................................... 10–6
容易-至-使用, 低-费用 pci 表示 解决方案 ............................................................................ 10–6
2.5-v lvttl (eia/电子元件工业联合会 标准 eia/jesd8-5) ................................................................. 10–7
2.5-v lvcmos (eia/电子元件工业联合会 标准eia/jesd8-5) ............................................................ 10–7
sstl-2 类 i &放大; ii (eia/电子元件工业联合会 标准 jesd8-9a) ............................................................. 10–7
pseudo-差别的 sstl-2 ........................................................................................................... 10–8
1.8-v lvttl (eia/电子元件工业联合会 标准 eia/jesd8-7) ................................................................. 10–9
1.8-v lvcmos (eia/电子元件工业联合会 标准eia/jesd8-7) .......................................................... 10–10
sstl-18 类 i &放大; ii ...................................................................................................................... 10–10
1.8-v hstl 类 i &放大; ii ................................................................................................................ 10–11
pseudo-差别的 sstl-18 类 i &放大; 差别的 sstl-18 类 ii ................................... 10–12
1.8-v pseudo-差别的 hstl 类 i&放大; ii ............................................................................ 10–13
1.5-v lvcmos (eia/电子元件工业联合会 标准 jesd8-11) .................................................................. 10–14
1.5-v hstl 类 i &放大; ii ................................................................................................................ 10–14
1.5-v pseudo-差别的 hstl 类 i&放大; ii ............................................................................ 10–15
lvds, rsds &放大; 迷你-lvds ......................................................................................................... 10–16
差别的 lvpecl .................................................................................................................... 10–17
Cyclone ii i/o banks ........................................................................................................................ 10–18
可编程序的 电流 驱动 力量 .......................................................................................... 10–24
电压-关联 i/o 标准 期ination ...................................................................... 10–26
差别的 i/o 标准 末端 .................................................................................... 10–26
i/o 驱动器 阻抗 相一致 (r
S
) &放大; 序列 末端 (r
S
) ......................................... 10–27
垫子 placement &放大; 直流 指导原则 ..................................................................................................... 10–27
差别的 垫子 placement guidelines ..................................................................................... 10–28
V
REF
垫子 placement 指导原则 ................................................................................................. 10–28
直流 指导原则 ............................................................................................................................... 10–32
5.0-v 设备 兼容性 .............................................................................................................. 10–34
Conclusion .......................................................................................................................................... 10–36
更多 信息 .............................................................................................................................. 10–37
References ........................................................................................................................................... 10–37
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