Altera IP Compiler for PCI Express - Manual (Page 148)

5–62 Chapter 5: IP Core Interfaces
Test Signals
IP Compiler for PCI Express User Guide August 2014 Altera Corporation
Avalon-ST Test Signals
The Avalon-ST test signals carry the status of the Avalon-ST RX adapter FIFO buffer in
IP Compiler for PCI Express variations with a Avalon-ST interface for both the hard IP
and soft IP implementations. These signals are for debug purposes only and your
design need not use them for normal operation.
Table 5–35. Avalon-ST Test Signals
Signal I/O Description
rx_st_fifo_full0 O
Indicates that the Avalon-ST adapter RX FIFO is almost full. Use this
signal for debug only and not to qualify data.
rx_st_fifo_empty0 O
Indicates that the Avalon-ST adapter RX FIFO is empty. Use this
signal for debug only and not to qualify data.