
RSB-4210 User Manual 26
Figure 2.27 Pin Header for Matrix Keypad
2.2.23 Pin Header for I2C/SPI (CN21)
RSB-4210 provides two I2C and one SPI interface with user to expand their applica-
tions. CN21 is the pin header for I2C/SPI interface. The pin assignment is shown as
below.
Figure 2.28 Pin Header for I2C/SPI
Pin Description Pin Description
1 KEY_COL2 2 KEY_ROW2
3 KEY_COL3 4 KEY_ROW3
5 KEY_COL4 6 KEY_ROW4
7 KEY_COL5 8 KEY_ROW5
9 KEY_COL6 10 KEY_ROW6
11 KEY_COL7 12 KEY_ROW7
Comentarios a estos manuales