28123 Parallax Inc, 28123 Datasheet - Page 206
28123
Manufacturer Part Number
28123
Description
TEXT WHAT'S A MICROCONTROLLER
Manufacturer
Parallax Inc
Type
Programmingr
Datasheet
1.28123.pdf
(340 pages)
Specifications of 28123
Style
Book
Title
What's a Microcontroller?
Contents
Whats a Microcontroller? Text
Product
Microcontroller Accessories
Core Processor
PIC16C57c
Flash
128 Bytes
Operating Supply Voltage
9 V
Board Size
31 mm x 16 mm
Lead Free Status / RoHS Status
Not applicable / Not applicable
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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 7-7
EEPROM Chip
on BASIC Stamp
Figure 7-8
Memory Map
To view this window,
click Run, and select
Memory Map.
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