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MSP430F67751IPZ Datasheet(PDF) 32 Page - Texas Instruments |
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MSP430F67751IPZ Datasheet(HTML) 32 Page - Texas Instruments |
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32 / 162 page  MSP430F677x1 , MSP430F676x1, MSP430F674x1 SLAS815C – NOVEMBER 2012 – REVISED DECEMBER 2013 www.ti.com Bootstrap Loader (BSL) The BSL enables users to program the flash memory or RAM using various serial interfaces. Access to the device memory via the BSL is protected by an user-defined password. BSL entry requires a specific entry sequence on the RST/NMI/SBWTDIO and TEST/SBWTCK pins. For a complete description of the features of the BSL and its implementation, see the MSP430 Programming Via the Bootstrap Loader User's Guide (SLAU319). Table 12. UART BSL Pin Requirements and Functions DEVICE SIGNAL BSL FUNCTION RST/NMI/SBWTDIO Entry sequence signal TEST/SBWTCK Entry sequence signal P2.0 Data transmit P2.1 Data receive VCC Power supply VSS Ground supply 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 13. 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 13. 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 14. 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 14. 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 32 Submit Documentation Feedback Copyright © 2012–2013, Texas Instruments Incorporated |
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