TBU Instances

Zynq UltraScale+ Device Technical Reference Manual (UG1085)

Document ID
UG1085
Release Date
2022-09-15
Revision
2.3 English

There are six TBUs supported by the SMMU TCU. These are listed in Table: System Masters with their system masters.

The SMMU uses a 15-bit stream ID to perform address translations. This information is part of a transaction and indicates which master originated the request. Bits [9:0] of the stream ID are the master ID defined in Table: Master IDs List. Bits [14:10] are the TBU number the master transaction passes through. For example, for the GEM0 PS master, its master ID is 10'h074 and its TBU number is 5'h02. Concatenating these fields gives GEM0 a stream ID of 15'h0874.

Table 16-4:      System Masters

SMMU Unit

System Masters

TBU0

S_AXI_HPC{0, 1}_FPD
SMMU TCU
CoreSight

TBU1

SIOU peripheral's DMA units

TBU2

LPD

TBU3

S_AXI_HP0_FPD
DisplayPort

TBU4

S_AXI_HP{1, 2}_FPD

TBU5

S_AXI_HP3_FPD
FPD DMA