Test command | Description |
RESET | Takes the boundary-scan logic to Test-Logic-Reset (equivalent to SVF “STATE RESET”) |
TMS0, TMS1 | Set TMS to 0/1 and generate one TCK clock pulse (enabling the implementation of any SVF “STATE” command) |
MTCK N | Sets TMS to 0 and generates N TCK pulses (enables the multiple TCK tests carried out by SVF “RUNTEST”) |
SHF1 N X | Shifts an N-bit bitstream (X) into the [instruction | selected data] register(s) (data bits shifted out are ignored) |
SHFCP1 N X, Y, Z | Shifts an N-bit bitstream (X) into the [instruction | selected data] register(s), and compares the output bitstream with its expected response (Y), in all positions indicated by the mask bitstream (Z) (enables the scan & compare “SDR” and “SIR” SVF commands) |
ZBS N | Issues N zero bit scan sequences by counting N TMS edge counts (used to generate IEEE 1149.7 commands and to set the control level) |
ESC N | Issues N escape sequences (used to select, deselect, reset, and set up other IEEE 1149.7 specific operations) |
SHF7O1 N X | Equivalent to SHF1 above, but using the 1149.7 advanced scan format OScan1 |
SHFCP7O1 N X, Y, Z | Equivalent to SHFCP1 above, but using the 1149.7 advanced scan format OScan1 |