None -- unless you write your own BSL.
MSP430F1xx chips use P1.1 as BSL-TXD, P2.2 as BSL-RXD
MSP430F20xx chips do not have BSL, other MSP430F2xx chip use P1.1 as BSL-TXD, P2.2 as BSL-RXD
MSP430F4xx chips use P1.0 as BSL-TXD, P1.1 as BSL-RXD
MSP430F5xx chips currently use P1.1 as BSL-TXD, P1.2 as BSL-RXD, but may be user programmable in the furture.
CC430F5xx chips currently use P1.6 as BSL-TXD, P1.5 as BSL-RXD, but may be user programmable in the furture.