Datasheet

MSP430F5529, MSP430F5528, MSP430F5527, MSP430F5526

MSP430F5525, MSP430F5524, MSP430F5522, MSP430F5521

MSP430F5519, MSP430F5517, MSP430F5515, MSP430F5514, MSP430F5513

SLAS590L –MARCH 2009–REVISED MAY 2013

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JTAG Operation

JTAG Standard Interface

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 8. For further

details on interfacing to development tools and device programmers, see the MSP430 Hardware Tools User's

Guide (SLAU278). For a complete description of the features of the JTAG interface and its implementation, see

MSP430 Programming Via the JTAG Interface (SLAU320).

Table 8. JTAG Pin Requirements and Functions

DEVICE SIGNAL DIRECTION FUNCTION

PJ.3/TCK IN JTAG clock input

PJ.2/TMS IN JTAG state control

PJ.1/TDI/TCLK IN JTAG data input, TCLK input

PJ.0/TDO OUT JTAG data output

TEST/SBWTCK IN Enable JTAG pins

RST/NMI/SBWTDIO IN External reset

VCC Power supply

VSS Ground supply

Spy-Bi-Wire Interface

In addition to the standard JTAG interface, the MSP430 family supports the two wire Spy-Bi-Wire interface. Spy-

Bi-Wire can be used to interface with MSP430 development tools and device programmers. The Spy-Bi-Wire

interface pin requirements are shown in Table 9. For further details on interfacing to development tools and

device programmers, see the MSP430 Hardware Tools User's Guide (SLAU278). For a complete description of

the features of the JTAG interface and its implementation, see MSP430 Programming Via the JTAG Interface

(SLAU320).

Table 9. Spy-Bi-Wire Pin Requirements and Functions

DEVICE SIGNAL DIRECTION FUNCTION

TEST/SBWTCK IN Spy-Bi-Wire clock input

RST/NMI/SBWTDIO IN, OUT Spy-Bi-Wire data input/output

VCC Power supply

VSS Ground supply

Product Folder Links: MSP430F5529 MSP430F5528 MSP430F5527 MSP430F5526 MSP430F5525 MSP430F5524

MSP430F5522 MSP430F5521 MSP430F5519 MSP430F5517 MSP430F5515 MSP430F5514 MSP430F5513