SLAS865F October 2014 – December 2021 MSP430FR4131 , MSP430FR4132 , MSP430FR4133
PRODUCTION DATA
The MSP430 family supports the standard JTAG interface which requires four signals for sending and receiving data. The JTAG signals are shared with general-purpose I/O. The TEST/SBWTCK pin is used to enable the JTAG signals. In addition to these signals, the
RST/NMI/SBWTDIO is required to interface with MSP430 development tools and device programmers. The JTAG pin requirements are shown in
Table 9-4. For further details on interfacing to development tools and device programmers, see the MSP430 Hardware Tools User's Guide. For a complete description of the features of the JTAG interface and its implementation, see MSP430 Programming With the JTAG Interface.
DEVICE SIGNAL | DIRECTION | JTAG FUNCTION |
---|---|---|
P1.4/MCLK/TCK/A4/VREF+ | IN | JTAG clock input |
P1.5/TA0CLK/TMS/A5 | IN | JTAG state control |
P1.6/TA0.2/TDI/TCLK/A6 | IN | JTAG data input/TCLK input |
P1.7/TA0.1/TDO/A7 | OUT | JTAG data output |
TEST/SBWTCK | IN | Enable JTAG pins |
RST/NMI/SBWTDIO | IN | External reset |
VCC | Power supply | |
VSS | Ground supply |