![]() ![]() ![]() The sense write circuit at the end of the two bit line monitors their state and sets the corresponding output accordingly. If the cell is in state 1 the signal on b line is high and the signal on b line is low.The opposite is true if the cell is in state 0.Thus, b and b are always complements of each others. SRAM cell is make up of 2 inverters are cross-connected to form a latch.The latch is connected to 2 bit line by transistor T1 and T2.ĭuring the Read Operation,Word line is activated to close switches T1 and T2. Set a parity bit to 0 if the total number of ones in the positions it check is even. To calculate the number of redundancy bits use: 2 m n m 1 Example: If m3, then n7 and k4. The values of n and k are then calculated from m as n 2 m -1 and r n-m. In simple parity check cannot correct the errors and can detect an odd number errors.įirst of all we need to know the relationship between n and k in a hamming code. These codes were originally designed with d min 3, which mean that they can detect up to two errors or correct one single error. ![]()
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