Hard Processor System Technical Reference Manual: Agilex™ 5 SoCs

ID 814346
Date 4/01/2024
Public
Document Table of Contents

15.5.7.4. Trace Port Interface Unit (TPIU)

TPIU transports trace data off the chip. Trace data enters the TPIU on the ATB bus receiver port and leaves through the 32-bit wide TRACEDATA port. Trace data coming out of the TPIU are sent to the FPGA. The following table lists the signal descriptions between the TPIU and FPGA.

Table 407.  Signal Descriptions between TPIU and FPGA
Signal Description
h2f_tpiu_clk_ctl Selects whether trace data is captured using the internal TPIU clock, which is the dbg_trace_clk signal from the clock manager; or an external clock provided as an input to the TPIU from the FPGA.

0 - use h2f_tpiu_clock_in

1 - use internal clock

Note: When the FPGA is powered down or not configured the TPIU uses the internal clock.
h2f_tpiu_data[32] 32-bit trace data bus. Trace data changes on both edges of h2f_tpiu_clock.
h2f_tpiu_clock_in Clock from the FPGA used to capture trace data.
h2f_tpiu_clock Clock output from TPIU