IEEE 1500 busDef

[drom]

from @fferhani:

The IEEE 1500 Embedded Core Test signals:

WRCK: Wrapper Clock. Provides timing for the core wrapper signaling.
WSI: Wrapper Serial Input. Serial input to the 1500 Wrapper Serial Port (WSP)
WSO: Wrapper Serial Output. Serial output from the 1500 Wrapper Serial Port
WRSTN: Wrapper Reset. Resets the wrapper.
ShiftWR: Wrapper Shift. The Shift Enable signal for the active 1500 Wrapper Scan Path registers.
CaptureWR: Wrapper Capture. The Capture Enable signals for the active 1500 Wrapper Scan Path
registers.
UpdateWR: Wrapper Update. The Update Enable signal for the active 1500 Wrapper Scan Path registers.
SelectWIR: Select Wrapper Instruction Register. Activates an instruction register as the active Wrapper Scan Path register.