mpc82x54a Megawin Technology, mpc82x54a Datasheet - Page 64

• Manufacturer Part Number: mpc82x54a
• Description: 8-bit Micro-controller
• Manufacturer: Megawin Technology

Avoid Inadvertent Data Lost from IAP/ISP
If the user invoke ISP/IAP function in own application, it is possible the MCU inadvertently
jumps to those ISP/IAP statements while the power supply drops under specific level. The
ISP/IAP statements could destroy the flash content.
To avoid the MCU inadvertently jumps to IAP/ISP instructions while the voltage falls under a
specific level on power-up and power-off moment, it is strongly suggested that the user
enables the Low-Voltage-Reset function by clearing bit ENLVR (OR0.6) to makes this device
never work under Low-Voltage.
Also the user should make great use of LVF (PCON.5) and ENLVFI (AUXR.2) to detect the
voltage dropping.
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MPC82x54A Data Sheet
MEGAWIN