Altera Arria V Avalon-ST User Manual
Page 41
Signal
Direction
Description
rx_st_bar[7:0]
Output
The decoded BAR bits for the TLP. Valid for
MRd
,
MWr
,
IOWR
, and
IORD
TLPs. Ignored for the completion or message TLPs. Valid
during the cycle in which
rx_st_sop
is asserted.
Refer to 64-Bit Avalon-ST rx_st_data<n> Cycle Definitions for 4-
Dword Header TLPs with Non-Qword Addresses and 128-Bit
Avalon-ST rx_st_data<n> Cycle Definition for 3-Dword Header
TLPs with Qword Aligned Addresses for the timing of this signal
for 64- and 128-bit data, respectively.
The following encodings are defined for Endpoints:
• Bit 0: BAR 0
• Bit 1: BAR 1
• Bit 2: Bar 2
• Bit 3: Bar 3
• Bit 4: Bar 4
• Bit 5: Bar 5
• Bit 6: Expansion ROM
• Bit 7: Reserved
The following encodings are defined for Root Ports:
• Bit 0: BAR 0
• Bit 1: BAR 1
• Bit 2: Primary Bus number
• Bit 3: Secondary Bus number
• Bit 4: Secondary Bus number to Subordinate Bus number
window
• Bit 5: I/O window
• Bit 6: Non-Prefetchable window
• Bit 7: Prefetchable window
4-4
Avalon‑ST RX Component Specific Signals
2014.12.15
Altera Corporation
Interfaces and Signal Descriptions