The BSL lets users program the flash memory or RAM using a UART serial interface. Access to the MCU memory through the BSL is protected by user-defined password. A bootstrap loader security key is provided at address 0FFBEh to disable the BSL completely or to disable the erasure of the flash if an invalid password is supplied. The BSL is optional for ROM-based devices. For complete description of the features of the BSL and its implementation, see the application report Features of the MSP430 Bootstrap Loader (SLAA089).
|00000h||Erasure of flash disabled if an invalid password is supplied|
|any other value||BSL enabled|
|BSL FUNCTION||PZ, ZCA, ZQW PACKAGE PINS|
|Data Transmit||87/A7 – P1.0|
|Data Receiver||86/E7 – P1.1|