5.3.7 HC08AZ32 EEPROM security
The HC08AZ32 has a special security option which prevents program/erase
access to memory locations $08F0 to $08FF. This security function is enabled by:
• Choosing the EEPROM security mask option See SECTION 9 MASK
OPTIONS.
• Programming the CON0 bit in the EENVR to ‘0’.
Once armed, the security is permanently enabled. A consequence of this is
that all functions in the EENVR will remain in the state they were in
immediately before the security was enabled.
Once the security is armed ‘Bulk’ and ‘Block’ erase modes are disabled.
‘Byte’ erasing can be used for all locations except $08F0 to $08FF. These
protected locations can be read as normal.
This section describes the mask options and the two mask option registers. The
mask options are hardwired connections specified at the same time as the ROM
code, which allow the user to customize the MCU. The options control the enable
or disable of the following functions:
• Resets caused by the LVI module
• Power to the LVI module
• Stop mode recovery time (32 CGMXCLK cycles or 4096 CGMXCLK cycles)
• ROM security(1)
• STOP instruction
• Computer operating properly (COP) module enable
• EEPROM security
Айде честито на печелившия ( АЗ ) кода на имото ще се пише само в чисто нов проц, не и в употребяван вече...
