Examples 6.12 Register circuits 6.12.1 1-bit shift register In this example, the shift register is 6 steps long. The signal input is shifted from O00.01 to O00.06 when the shift clock pulse is comes in from I00.00. Circuit symbol I00.01 SI I00.00 PC SO.1 O00.01 SI: signal input I00.01 SO.2 O00.02 PC: I00.00 : : SO.1: signal output 1 O00.01 SO.n O00.06 SO.2: signal output 2 O00.02 : : 1 bit shift SO.n:
signal output n O00.06 register Instruction list L I00.00 ;shift clock pulse = PP00.00 ;wiping pulse L PP00.00 ;wiping pulse JPCN NORM ;go to normal programif no L O00.05 ;step 5 = O00.06 ;step 6 L O00.04 ;step 4 = O00.05 ;step 5 L O00.03 ;step 3 = O00.04 ;step 4 L O00.02 ;step 2 = O00.03 ;step 3 L O00.01 ;step 1 = O00.02 ;step 2 L I00.01 ;signal input = O00.01 ;step 1 NORM : : ;normal program 125