ZHCSCU8C August 2014 – August 2018 MSP430FR6927 , MSP430FR69271 , MSP430FR6928 , MSP430FR6977 , MSP430FR6979 , MSP430FR69791
PRODUCTION DATA.
The BSL enables programming of the FRAM or RAM using a UART serial interface (FRxxxx devices) or an I2C interface (FRxxxx1 devices). Access to the device memory through the BSL is protected by an user-defined password. Table 6-6 lists the BSL pin requirements. BSL entry requires a specific entry sequence on the RST/NMI/SBWTDIO and TEST/SBWTCK pins. For complete description of the features of the BSL and its implementation, see MSP430 Programming With the Bootloader (BSL).
| DEVICE SIGNAL | BSL FUNCTION |
|---|---|
| RST/NMI/SBWTDIO | Entry sequence signal |
| TEST/SBWTCK | Entry sequence signal |
| P2.0 | Devices with UART BSL (FRxxxx): Data transmit |
| P2.1 | Devices with UART BSL (FRxxxx): Data receive |
| P1.6 | Devices with I2C BSL (FRxxxx1): Data |
| P1.7 | Devices with I2C BSL (FRxxxx1): Clock |
| VCC | Power supply |
| VSS | Ground supply |