Hard Processor System Technical Reference Manual: Agilex™ 3 SoCs

ID 848530
Date 6/23/2025
Public

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4.3.8.1. TBU Private Registers

The TBU private registers are per TBU per Manager basis. For example, if there are “m” number of TBUs, and “n” number of managers driving the transactions, then total “mxn” number of registers are needed for MUX logic. All the TBU registers are in cold reset.

Table 105.  TBUs and Their Registers
Instance Partition Connected Components TBU Number[m] Num. of Manager on TBU[n]

DMA_TBU

PSS

DMA controller

0

2

SDM_TBU

PSS

SDM

1

1

IO_TBU

PSS

USB2, USB3 ETR, SD/MMC/, NAND

2

5

TSN_TBU

PSS

TSN

3

3