JTAG Interface Signals - 1.0 English

BSCAN to JTAG Converter LogiCORE IP Product Guide (PG365)

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1.0 English

The following table describes JTAG interface signals:

Table 1. JTAG Interface Signals
Signal I/O Width Description
TCK O 1 Test clock output. Output clock for sampling the data.
TDI O 1 Test data input (TDI) output. Serial data output.
TDO I 1 Test data output (TDO) input. Serial data input.
TMS O 1 Test mode select (TMS) output. Controls the transitions.