If the load is high, the design will load the specified hex char(input data pins) at the specified location in memory (input char position), therwise the design will go trough the display columns and represent the chars using the internal character map. The design should be reseted before use
Use the input data to add chars to the internal memory.
16x4 led matrix
| # | Input | Output | Bidirectional |
|---|---|---|---|
| 0 | input data 0 | active column number 0 | |
| 1 | input data 1 | active column number 1 | |
| 2 | input data 2 | active column number 2 | |
| 3 | input data 3 | active column number 3 | |
| 4 | input char position 0 | line output 0 | |
| 5 | input char position 1 | line output 1 | |
| 6 | load | line output 2 | |
| 7 | line output 3 |