SmartFusion Customizable System-on-Chip (cSoC)
Revision 10 5-11
Table 5-1 • Recommended Tie-Off Values for the TCK and TRST Pins
VJTAG Tie-Off Resistance
1, 2
VJTAG at 3.3 V 200 to 1 k
VJTAG at 2.5 V 200 to 1 k
VJTAG at 1.8 V 500 to 1 k
VJTAG at 1.5 V 500 to 1 k
Notes:
1. The TCK pin can be pulled up/down.
2. The TRST pin can only be pulled down.
1. Equivalent parallel resistance if more than one device is on JTAG chain.