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Design Considerations for In-Circuit Programming
Disconnect if target has it's own 'local' power source
VCC
100nF 10uF
100K
VCC/AVCC/DVCC**
RST/NMI
VCC
Test
2 1 TDO/TDI TDI
4 3
65 TMS
87 TCK
10 9 GND
12 11 RST/NMI
14 13
14 pos. header
(3M p/n
TDO/TDI
TDI
TMS
TCK
MSP430
Test
20K***
***Pulldown not required on all devices. Check device datasheet pin description.
VSS/AVSS/DVSS**
*Not present on all devices
**Pins vary by device.
Note: Connection to XOUT is not required
No JTAG connection is required to the XOUT pin of the MSP430 as shown on some schematics.