20.8.7 Quality of Service Control
| Name: | QOSCTRL |
| Offset: | 0x0E |
| Reset: | 0x15 |
| Property: | PAC Write-Protection |
| Bit | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | |
| DQOS[1:0] | FQOS[1:0] | WRBQOS[1:0] | |||||||
| Access | R/W | R/W | R/W | R/W | R/W | R/W | |||
| Reset | 1 | 0 | 1 | 0 | 1 | 0 | |||
Bits 5:4 – DQOS[1:0] Data Transfer Quality of Service
These bits define the memory priority access during the data transfer operation.
| DQOS[1:0] | Name | Description |
|---|---|---|
| 0x0 | DISABLE | Background (no sensitive operation) |
| 0x1 | LOW | Sensitive Bandwidth |
| 0x2 | MEDIUM | Sensitive Latency |
| 0x3 | HIGH | Critical Latency |
Bits 3:2 – FQOS[1:0] Fetch Quality of Service
These bits define the memory priority access during the fetch operation.
| FQOS[1:0] | Name | Description |
|---|---|---|
| 0x0 | DISABLE | Background (no sensitive operation) |
| 0x1 | LOW | Sensitive Bandwidth |
| 0x2 | MEDIUM | Sensitive Latency |
| 0x3 | HIGH | Critical Latency |
Bits 1:0 – WRBQOS[1:0] Write-Back Quality of Service
These bits define the memory priority access during the write-back operation.
| WRBQOS[1:0] | Name | Description |
|---|---|---|
| 0x0 | DISABLE | Background (no sensitive operation) |
| 0x1 | LOW | Sensitive Bandwidth |
| 0x2 | MEDIUM | Sensitive Latency |
| 0x3 | HIGH | Critical Latency |