CC430F613 Datasheet, PDF (19/120 Pages) Texas Instruments – MSP430 SoC with RF Core

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JTAG Operation
ECCN 5E002 TSPA - Technology / Software Publicly Available
CC430F613x
CC430F612x
CC430F513x
SLAS554E – MAY 2009 – REVISED NOVEMBER 2010
JTAG Standard Interface
The CC430 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 5. For further
details on interfacing to development tools and device programmers, see the MSP430 Hardware Tools User's
Guide, literature number SLAU278.
Table 5. JTAG Pin Requirements and Functions
DEVICE SIGNAL
PJ.3/TCK
PJ.2/TMS
PJ.1/TDI/TCLK
PJ.0/TDO
TEST/SBWTCK
RST/NMI/SBWTDIO
VCC
VSS
Direction
IN
IN
IN
OUT
IN
IN
FUNCTION
JTAG clock input
JTAG state control
JTAG data input/TCLK input
JTAG data output
Enable JTAG pins
External reset
Power supply
Ground supply
Spy-Bi-Wire Interface
In addition to the standard JTAG interface, the CC430 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. For further details on interfacing to development tools and
device programmers, see the MSP430 Hardware Tools User's Guide, literature number SLAU278.
Table 6. Spy-Bi-Wire Pin Requirements and Functions
DEVICE SIGNAL
TEST/SBWTCK
RST/NMI/SBWTDIO
VCC
VSS
Direction
IN
IN, OUT
FUNCTION
Spy-Bi-Wire clock input
Spy-Bi-Wire data input/output
Power supply
Ground supply
Flash Memory
The flash memory can be programmed via the JTAG port, Spy-Bi-Wire (SBW), or in-system by the CPU. The
CPU can perform single-byte, single-word, and long-word writes to the flash memory. Features of the flash
memory include:
• Flash memory has n segments of main memory and four segments of information memory (Info A to Info D)
of 128 bytes each. Each segment in main memory is 512 bytes in size.
• Segments 0 to n may be erased in one step, or each segment may be individually erased.
• Segments Info A to Info D can be erased individually, or as a group with the main memory segments.
Segments Info A to Info D are also called information memory.
• Segment A can be locked separately.
RAM Memory
The RAM memory is made up of n sectors. Each sector can be completely powered down to save leakage,
however, all data is lost. Features of the RAM memory include:
• RAM memory has n sectors of 2k bytes each.
• Each sector 0 to n can be complete disabled, however data retention is lost.
• Each sector 0 to n automatically enters low power retention mode when possible.
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