Datasheet

MSP430F5229, MSP430F5227, MSP430F5224, MSP430F5222

MSP430F5219, MSP430F5217, MSP430F5214, MSP430F5212

SLAS718D –NOVEMBER 2012–REVISED OCTOBER 2013

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NOTE

To invoke the BSL from the DVCC domain, the RSTDVCC/SBWTDIO and

TEST/SBWTCK pins must be used for the entry sequence. It is critical not to confuse the

RST/NMI pin with the RSTDVCC/SBWTDIO pin. In other MSP430 devices, SBWTDIO is

shared with the RST/NMI pin and RSTDVCC does not exist. Additional information can be

found in Designing with MSP430F522x and MSP430F521x Devices (SLAA558).

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 RSTDVCC/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). Additional information can be found in Designing

with MSP430F522x and MSP430F521x Devices (SLAA558).

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

RSTDVCC/SBWTDIO IN External reset

DVCC, AVCC Device power supply

DVIO I/O power supply

DVSS Ground supply

NOTE

Traditionally, on other MSP430 devices, the RST/NMI pin is used for SBWTDIO, so care

must be taken not to mistakenly use the incorrect pin. On the F522x and F521x series of

devices, it is required to use RSTDVCC for SBWTDIO as shown in Table 8. Additional

information can be found in Designing with MSP430F522x and MSP430F521x Devices

(SLAA558).

Product Folder Links: MSP430F5229 MSP430F5227 MSP430F5224 MSP430F5222 MSP430F5219 MSP430F5217

MSP430F5214 MSP430F5212