
PICkit? Serial Analyzer User’s Guide
FIGURE 2-3:
28-PIN DEMO I 2 C? – RTC
2.7.2
Serial EEPROM (EEPROM)
Clicking on the EEPROM tab will display the 256 byte array of EEPROM memory as
shown in Figure 2-4. The 28-Pin Demo Board has been programmed to emulate a
stand-alone serial I 2 C EEPROM device such as a 24LC02. The I 2 C commands are
very similar to the commands used in these devices.
The Serial EEPROM tab displays the contents of a serial EEPROM implemented on
the 28-Pin Demo Board. When this tab is first displayed, the values are grayed out. This
means that the display does not match the contents of the emulated serial EEPROM.
Click on Read EE button and the program will read and display the contents of the
28-Pin Demo Board. Notice that the displayed values are now black.
Individual memory locations can be changed by clicking on the value and typing in a
new value in hexadecimal. Notice that the changed values will be displayed in red. This
means the value has changed but has not been written to the emulated serial
EEPROM. Click on the Write EE button and the values will be written. The color of the
value will turn to black indicating that the value has been written and the display
matches the contents of the emulated serial EEPROM.
DS51647A-page 12
? 2007 Microchip Technology Inc.