Texas Instruments MSP430F5529 User Manual

MSP430F5529 , MSP430F5528 , MSP430F5527 , MSP430F5526
MSP430F5525 , MSP430F5524 , MSP430F5522 , MSP430F5521
MSP430F5519, MSP430F5517, MSP430F5515, MSP430F5514, MSP430F5513
www.ti.com SLAS590M –MARCH 2009–REVISED NOVEMBER 2015
6.6 JTAG Operation
6.6.1 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 6-
5. 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 6-5. 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
6.6.2 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 6-6. 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 6-6. 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
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Texas Instruments MSP430F5529 Specifications

General

Brand	Texas Instruments
Model	MSP430F5529
Category	Microcontrollers
Language	English