HD44780U

32

Interfacing to an 8-bit MPU

See Figure 16 for an example of using a I/O port (for a single-chip microcomputer) as an interface

device.

In this example, P30 to P37 are connected to the data bus DB0 to DB7, and P75 to P77 are connected to

E, R/

W, and RS, respectively.

*

0