EVAL-ADUC832QSZ Analog Devices Inc, EVAL-ADUC832QSZ Datasheet - Page 47
EVAL-ADUC832QSZ
Manufacturer Part Number
EVAL-ADUC832QSZ
Description
KIT DEV FOR ADUC832 QUICK START
Manufacturer
Analog Devices Inc
Series
QuickStart™ Kitr
Type
MCUr
Specifications of EVAL-ADUC832QSZ
Contents
Evaluation Board, Cable, Power Supply, Software and Documentation
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With/related Products
ADuC832
Lead Free Status / RoHS Status
Compliant, Lead free / RoHS Compliant
Other names
EVAL-ADUC832QS
EVAL-ADUC832QS
EVAL-ADUC832QS
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FLASH/EE PROGRAM MEMORY SECURITY
The ADuC832 facilitates three modes of Flash/EE program
memory security. These modes can be independently activated,
restricting access to the internal code space. These security modes
can be enabled as part of serial download protocol as described
in Technical Note uC004 or via parallel programming. The
security modes available on the ADuC832 are described as
follows.
Lock Mode
This mode locks the code memory, disabling parallel
programming of the program memory. However, reading the
memory in parallel mode and reading the memory via a MOVC
command from external memory is still allowed. This mode is
deactivated by initiating a code-erase command in serial
download or parallel programming modes.
Rev. A | Page 47 of 92
Secure Mode
This mode locks code in memory, disabling parallel programming
(program and verify/read commands) as well as disabling the
execution of a MOVC instruction from external memory, which
attempts to read the op codes from internal memory. Read/write of
internal data Flash/EE from external memory is also disabled. This
mode is deactivated by initiating a code-erase command in serial
download or parallel programming modes.
Serial Safe Mode
This mode disables serial download capability on the device. If
serial safe mode is activated and an attempt is made to reset the
part into serial download mode, that is, RESET asserted and
deasserted with PSEN low, the part interprets the serial
download reset as a normal reset only. It therefore does not
enter serial download mode but only executes a normal reset
sequence. Serial safe mode can only be disabled by initiating a
code-erase command in parallel programming mode.
ADuC832
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