AXI Ports - 2023.1 English

H.264/H.265 Video Codec Unit v1.2 Solutions LogiCORE IP Product Guide (PG252)

Document ID
PG252
Release Date
2023-05-16
Version
2023.1 English

The AXI specification is available (after registration) on http://www.arm.com/products/system-ip/amba/amba-open-specifications.php. The AXI ports of the BA317 match AXI4 specification. However, they do not perform reordering. They support all burst types (narrow transfer, incremental/wrapping/fixed bursts).

The following tables represents the AXI port numbers.

Table 1. AXI Write Ports
Signal Direction Description
Write Address Channel
pl_cust_slot_awidX [15:0] In  
pl_cust_slot_awaddrX [31:0] In Byte address
pl_cust_slot_awlenX [7:0] In Length of burst (number of transfer minus 1)
pl_cust_slot_awsizeX [2:0] In Transfer width:
  • 000: 8-bit
  • 001: 16-bit
  • 010: 32-bit
  • 011: 64-bit
pl_cust_slot_awburstX [1:0] In Burst type:
  • 00: Fixed
  • 01: Incremental
  • 10: Wrapping
  • 11: Reserved
pl_cust_slot_awvalidX In  
cust_pl_slot_awreadyX Out  
Write Data Channel
pl_cust_slot_widX[15:0] In  
pl_cust_slot_wdataX [127:0] In Write data
pl_cust_slot_wstrbX [15:0] In Byte enable
pl_cust_slot_wlastX In Not used by the port
pl_cust_slot_wvalidX In  
cust_pl_slot_wreadyX Out  
Write response channel
cust_pl_slot_bidX[15:0] Out  
cust_pl_slot_brespX[1:0] Out Tied to zero(OKAY).
cust_pl_slot_bvalidX Out  
pl_cust_slot_breadyX In  
Table 2. AXI Read Ports
Signal Direction Description
Read Address Channel
pl_cust_slot_aridX[15:0] In  
pl_cust_slot_araddrX [31:0] In Byte address
pl_cust_slot_arlenX[7:0] In Length of burst (number of transfer minus 1)
pl_cust_slot_arsizeX[2:0] In Transfer width:
  • 000: 8-bit
  • 001: 16-bit
  • 010: 32-bit
  • 011: 64-bit
pl_cust_slot_arburstX [1:0] In Burst type:
  • 00: Fixed
  • 01: Incremental
  • 10: Wrapping
  • 11: Reserved
pl_cust_slot_arvalidX In  
cust_pl_slot_arreadyX Out  
Read Data Channel
cust_pl_slot_ridX[15:0] Out  
cust_pl_slot_rdataX[127:0] Out Read data
cust_pl_slot_rrespX[1:0] Out Tied to zero (OKAY)
cust_pl_slot_rlastX Out  
cust_pl_slot_rvalidX Out  
pl_cust_slot_rreadyX In