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SLG46140 Scheda tecnica(PDF) 76 Page - Dialog Semiconductor |
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SLG46140 Scheda tecnica(HTML) 76 Page - Dialog Semiconductor |
76 / 170 page 000-0046140-109 Page 75 of 169 SLG46140 11.0 Combinatorial Logic Combinatorial logic is supported via nine Lookup Tables (LUTs) within the SLG46140. There are four 2-bit LUTs and four 3-bit LUTs. The device also includes eight Combination Function Macrocells that can be used as LUTs. For more details, please see Section 12.0 Combination Function Macrocells. Inputs/Outputs for the eight LUTs are configured from the connection matrix with specific logic functions being defined by the state of NVM bits. The outputs of the LUTs can be configured to any user defined function, including the following standard digital logic devices (AND, NAND, OR, NOR, XOR, XNOR). 11.1 2-Bit LUT The four 2-bit LUTs each take in two input signals from the connection matrix and produce a single output, which goes back into the connection matrix. Figure 38. 2-bit LUTs 2-bit LUT0 OUT IN1 IN0 reg <851:848> From Connection Matrix Output <0> From Connection Matrix Output <1> To Connection Matrix Input <1> 2-bit LUT1 OUT IN1 IN0 reg <855:852> From Connection Matrix Output <2> From Connection Matrix Output <3> To Connection Matrix Input <2> 2-bit LUT2 OUT IN1 IN0 reg <859:856> From Connection Matrix Output <4> From Connection Matrix Output <5> To Connection Matrix Input <3> 2-bit LUT3 OUT IN1 IN0 reg <863:860> From Connection Matrix Output <6> From Connection Matrix Output <7> To Connection Matrix Input <4> Table 37. 2-bit LUT0 Truth Table IN1 IN0 OUT 0 0 reg <848> 0 1 reg <849> 1 0 reg <850> 1 1 reg <851> Table 38. 2-bit LUT1 Truth Table IN1 IN0 OUT 0 0 reg <852> 0 1 reg <853> 1 0 reg <854> 1 1 reg <855> Table 39. 2-bit LUT2 Truth Table IN1 IN0 OUT 0 0 reg <856> 0 1 reg <857> 1 0 reg <858> 1 1 reg <859> Table 40. 2-bit LUT3 Truth Table IN1 IN0 OUT 0 0 reg <860> 0 1 reg <861> 1 0 reg <862> 1 1 reg <863> |
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