Datasheet

13
Easy24-33 v6 Development System
MikroElektronika
page
8.0. Serial EEPROM Module
EEPROM (Electrically Erasable Programmable Read-Only Memory) is a built-in memory module used to store data that should be
saved when the power supply goes off. The 24AA01 circuit can store up to 1Kbit data and communicates with the microcontroller
through pins RB6 - RB9 using I
2
C communication. In order to enable connection between the EEPROM module and the microcontroller,
it is necessay to set switches 1 (RB8) and 3 (RB9) on the DIP switch SW2 to the ON position. Switches 2 (RB6) and 4 (RB7) on the
DIP switch SW2 may be optionally used.
Figure 8-1: Serial EEPROM module and microcontroller connection schematic
Serial EEPROM is connected to the microcontroller via pins RB8 and RB9
9.0. USB Communication Module
The Easy24-33 v6 development system can communicate with external devices through the USB connector CN9. Only microcontrollers
with the built-in USB communication module are capable of using USB communication. Jumpers J8, J9, J10 and J11 are used to
determine the fuction of microcontroller pins RB6, RB10, RB11 and RB12. When these jumpers are in the USB position (Figure 9-1),
the microcontroller pins are used for USB communication. When they are in the I/O position, the microcontroller pins are used as I/O
pins.
Figure 9-1: USB connector CN9 and microcontroller connection schematic
Jumpers J8, J9, J10 and J11 are in USB position