AT89C51CC02CA-TDSUM ATMEL [ATMEL Corporation], AT89C51CC02CA-TDSUM Datasheet - Page 34
AT89C51CC02CA-TDSUM
Manufacturer Part Number
AT89C51CC02CA-TDSUM
Description
Enhanced 8-bit Microcontroller with CAN Controller and Flash
Manufacturer
ATMEL [ATMEL Corporation]
Datasheet
1.AT89C51CC02CA-TDSUM.pdf
(156 pages)
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Program/Code
Memory
Flash Memory
Architecture
Figure 13. Flash Memory Architecture
34
AT/T89C51CC02
Hardware Security (1 byte)
Extra Row (128 Bytes)
Column Latches (128 Bytes)
The T89C51CC02 implement 16K Bytes of on-chip program/code memory.
The Flash memory increases EPROM and ROM functionality by in-circuit electrical era-
sure and programming. Thanks to the internal charge pump, the high voltage needed for
programming or erasing Flash cells is generated on-chip using the standard V
age. Thus, the Flash memory can be programmed using only one voltage and allows In-
System Programming (ISP). Hardware programming mode is also available using spe-
cific programming tool.
Figure 12. Program/Code Memory Organization
T89C51CC02 features two on-chip Flash memories:
•
•
The FM0 can be program by both parallel programming and Serial ISP whereas FM1
supports only parallel programming by programmers. The ISP mode is detailed in the
’In-System Programming’ section.
All Read/Write access operations on Flash memory by user application are managed by
a set of API described in the ’In-System Programming’ section.
3FFFh
0000h
Flash memory FM0:
containing 16K Bytes of program memory (user space) organized into 128 bytes
pages,
Flash memory FM1:
2K Bytes for boot loader and Application Programming Interfaces (API).
Flash Memory
16K Bytes
User Space
FM0
3FFFh
0000h
16K Bytes
Internal
Flash
FM1 mapped between F800h and
FFFFh when bit ENBOOT is set in
AUXR1 register
Flash Memory
Boot Space
2K Bytes
FM1
FFFFh
F800h
4126J–CAN–05/06
DD
volt-
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