- RS - Register select: Selects between the Instruction and Data registers.
- E - Enable: Asserted high to start a read/write transaction.
- RW - Read not Write: When asserted indicates a read, de-asserted indicates a write.
- DATA - Data Bus: An 8-bit bus containing the data to be read/written to the indicated register.
RS <-> RB15 E <-> RD4 RW <-> RD5 DATA <-> RE0 - RE7
- NT7603 LCD Controller / Driver Databook