3.3.10. Read Channel QoS Value Override Register

The Read Channel QoS Value Override Register characteristics are:

Purpose

Contains override values for ARQOS, with a register for each slave interface. This value is used if you set the QOSOVERRIDE[4:0] input signal bit for this slave interface and the QoS value regulator is not enabled.

You can also use this register to read the current value of the QoS value regulator for read accesses when the regulator is enabled.

Usage constraints

Accessible using only Secure accesses, unless you set the Secure Access Register. See Table 3.4.

Configurations

Available in all CCI-400 configurations.

Attributes

Figure 3.9 shows the bit assignments.

Figure 3.9. Read Channel QoS Value Override Register bit assignments

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Table 3.12 shows the bit assignments.

Table 3.12. Read Channel QoS Value Override Register bit assignments

Bits

Reset

Access

Function

[31:12]

-

RAZ/WI

Reserved.

[11:8]

0x0

R/WI

Reads what value is currently applied to transactions with ARQOS=0, provided QOSOVERRIDE is HIGH and the QoS value regulator is enabled.

[7:4]

-

RAZ/WI

Reserved.

[3:0]

0x0

RW

ARQOS value override for the slave interface.


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