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Page 198 · What’s a Microcontroller? Figure 7-7 EEPROM Chip on BASIC Stamp Figure 7-8 shows a window called Memory Map. You can view this window by clicking Run and selecting Memory Map. The Memory Map uses different colors to show how both the BASIC Stamp module’s RAM (variables) and EEPROM (program memory) are being used. The EEPROM Map has two graphs. The bar at the far left shows that only a small fraction of the program memory is used to store the photoresistor program from Activity #2. By scrolling to the bottom of the EEPROM Map’s main window and counting the bytes highlighted in blue, you will find that only 101 bytes out of the 2048 byte EEPROM are used for the program. The remaining 1947 bytes are free to store data. Figure 7-8 Memory Map To view this window, click Run, and select Memory Map.