4.2.4.5 RX Flow N Configuration Register E (0x010 + 32×N)
The RX Flow N Configuration Register E contains static configuration information for the RX DMA flow. The fields in this register can be safely changed only when all of the DMA channels that use this flow have been disabled. The fields in this register are shown in Figure 4-31:
Figure 4-31 RX Flow N Configuration Register E (0x010 + 32×N)
31 |
30 |
29 |
|
28 |
27 |
|
16 |
15 |
14 |
13 |
|
12 |
11 |
|
0 |
Reserved |
RX_FDQ2_QMGR |
RX_FDQ2_QNUM |
Reserved |
RX_FDQ3_QMGR |
RX_FDQ3_QNUM |
Legend: R = Read only; W = Write only; - n = value after reset |
Table 4-39 RX Flow N Configuration Register E Field Descriptions
Bit |
Field |
Description |
31-30 |
Reserved |
Reads return 0 and writes have no effect. |
29-28 |
RX_FDQ2_QMGR |
RX free descriptor 2 queue manager index. This field specifies which queue manager should be used for the 3rd RX buffer in a host type packet |
27-16 |
RX_FDQ2_QNUM |
RX free descriptor 2 queue index. This field specifies which free descriptor queue should be used for the 3rd RX buffer in a host type packet |
15-14 |
Reserved |
Reads return 0 and writes have no effect. |
13-12 |
RX_FDQ3_QMGR |
RX free descriptor 3 queue manager index. This field specifies which queue manager should be used for the 4th or later RX buffers in a host type packet |
11-0 |
RX_FDQ3_QNUM |
RX free descriptor 3 queue index. This field specifies which free descriptor queue should be used for the 4th or later RX buffers in a host type packet |