1 VSS Negative power supply, 0V Register Select 2 D/C D/C=H, Transferring the Display Data D/C=L, Transferring the Control Data /WR=L->H, /RD=H 3 /WR Data or Instruction latch into the LCD module 4 /RD /WR=L->H, /RD=H Data or Status read from the LCD module Chip Select 5 /CS0 CS0=L, enabl.
