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EP2SGX30D 数据表(PDF) 59 Page - Altera Corporation |
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EP2SGX30D 数据表(HTML) 59 Page - Altera Corporation |
59 / 314 page Altera Corporation 2–51 October 2007 Stratix II GX Device Handbook, Volume 1 Stratix II GX Architecture asynchronous clear, asynchronous preset/load, synchronous clear, synchronous load, and clock enable control for the register. These LAB wide signals are available in all ALM modes. Refer to “LAB Control Signals” on page 2–46 for more information on the LAB-wide control signals. The Quartus II software and supported third-party synthesis tools, in conjunction with parameterized functions such as library of parameterized modules (LPM) functions, automatically choose the appropriate mode for common functions such as counters, adders, subtractors, and arithmetic functions. If required, you can also create special-purpose functions that specify which ALM operating mode to use for optimal performance. Normal Mode The normal mode is suitable for general logic applications and combinational functions. In this mode, up to eight data inputs from the LAB local interconnect are inputs to the combinational logic. The normal mode allows two functions to be implemented in one Stratix II GX ALM, or an ALM to implement a single function of up to six inputs. The ALM can support certain combinations of completely independent functions and various combinations of functions which have common inputs. Figure 2–37 shows the supported LUT combinations in normal mode. |
类似零件编号 - EP2SGX30D |
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类似说明 - EP2SGX30D |
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