138 Option23

138 : 0b 010 001 010 : Option23

Select Project 1 2 3 4 5 6 7 8 9 ON SW2

How it works

clock: clocks out character columns or shifts in data. din = 1111111: show characters and bitmaps column by column. din = 1xxxxxx shift in ASCII character x. din = b10xxxxx : shift in bitmap column xxxxx

How to test

Shift in some data and set din = 1111111 to clock out characters and graphics

IO

# Input Output
0 clock led 0
1 din 0 led 1
2 din 1 led 2
3 din 2 led 3
4 din 3 led 4
5 din 4 led 5
6 din 5 led 6
7 din 6 led 7