A UART BSL is also available that can be programmed by the user into the BSL memory by replacing the preprogrammed, factory supplied, USB BSL. Use of the UART BSL requires external access to six pins (see Table 9-6).
|DEVICE SIGNAL||BSL FUNCTION|
|RST/NMI/SBWTDIO||Entry sequence signal|
|TEST/SBWTCK||Entry sequence signal|