Signal Connections for | www.ti.com |
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J1 (SEE NOTE A) |
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J2 (SEE NOTE A) |
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| R1 | C2 | C3 |
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| 10 µF | 0.1 µF | |
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| 47 KΩ | ||
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| (SEE NOTE B) |
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| JTAG |
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VCC TOOL | 1 | TDO/TDI |
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2 |
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VCC TARGET | 3 |
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4 |
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6 | 5 |
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TEST/VPP | 7 | TCK |
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8 |
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10 | 9 | GND |
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| R2 |
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12 | 11 |
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| 330 Ω |
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14 | 13 |
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| C1 |
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| 2.2 NF |
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| (SEE NOTE B) |
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VCC/AVCC/DVCC
MSP430FXXX
RST/NMI/SBWTDIO
TEST/SBWTCK
VSS/AVSS/DVSS
AMake either connection J1 in case a local target power supply is used or connection J2 to power target from the debug/programming adapter.
BThe device RST/NMI/SBWTDIO pin is used in
CR2 protects the JTAG debug interface TCK signal from the JTAG security fuse blow voltage that is supplied by the TEST/VPP pin during the fuse blow process. If fuse blow functionality is not needed, R2 is not required (populate 0 ?), and do not connect TEST/VPP to TEST/SBWTCK.
Figure 2-2. Signal Connections for 2-Wire JTAG Communication (Spy-Bi-Wire)
26 | Design Considerations for | SLAU278F |
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