C2H Completion Entry Structure - 3.4 English

C2H Completion Entry Structure - 3.4 English - PG347

Versal Adaptive SoC CPM DMA and Bridge Mode for PCI Express Product Guide (PG347)

Document ID

PG347

Release Date

2025-12-03

Version

3.4 English

The following is the C2H Completion ring entry structure for User format when the data format bit is set to 1’b1.

Table 1. C2H Completion Entry User Format Structure
Name	Size	Index
User defined bits for 32 Bytes settings	252 bits	[255:4]
User defined bits for 16 Bytes settings	124 bits	[127:4]
User defined bits for 8 Bytes settings	60 bits	[63:4]
desc_used	1	[3:3]
err	1	[2:2]
color	1	[1:1]
Data format	1	[0:0]

The following is the C2H Completion ring entry structure for Standard format when the data format bit is set to 1’b0.

Table 2. C2H Completion Entry Standard Format Structure
Name	Size	Index
User defined bits for 32 Bytes settings	236 bits	[255:20]
User defined bits for 16 Bytes settings	108 bits	[127:20]
User defined bits for 8 Bytes settings	44 bits	[63:20]
Len	16	[19:4]
desc_used	1	[3:3]
err	1	[2:2]
color	1	[1:1]
Data format	1	[0:0]