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4.39 Receive CPPI DMA State Word 2 (RCPPIDMASTATEW2)
The Receive CPPI DMA State Word 2 (RCPPIDMASTATEW2) is shown in Figure 54 and described in Table 55.
Figure 54. Receive CPPI DMA State Word 2 (RCPPIDMASTATEW2)
31 |
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| 16 |
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| SOP_DESCRIPTOR_PTR |
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15 |
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| 2 | 1 | 0 |
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| SOP_DESCRIPTOR_PTR | Reserved | IN_PACKET | |
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LEGEND: R/W = Read/Write; R = Read only; |
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| Table 55. Receive CPPI DMA State Word 2 (RCPPIDMASTATEW2) Field Descriptions | ||||
Bit | Field | Value | Description |
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SOP_DESCRIPTOR_PTR | Start of Packet Buffer Descriptor Pointer |
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| current packet |
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1 | Reserved | 0 | Reserved |
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0 | IN_PACKET |
| Flag indicating the DMA is in the middle of processing a packet 0: Not currently | ||
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| in packet |
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| 0 | Not currently in packet |
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| 1 | Currently in packet |
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4.40 Receive CPPI DMA State Word 3 (RCPPIDMASTATEW3)
The Receive CPPI DMA State Word 3 (RCPPIDMASTATEW3) is shown in Figure 55 and described in Table 56.
Figure 55. Receive CPPI DMA State Word 3 (RCPPIDMASTATEW3)
31 |
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| 16 |
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| CURR_DESCRIPTOR_PTR |
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15 |
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| 1 | 0 |
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| CURR_DESCRIPTOR_PTR | Reserved | ||
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LEGEND: R/W = Read/Write; R = Read only; |
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| Table 56. Receive CPPI DMA State Word 3 (RCPPIDMASTATEW3) Field Descriptions |
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Bit | Field | Value | Description |
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CURR_DESCRIPTOR_PTR | Current Buffer Descriptor Pointer |
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| being received |
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Reserved | 0 | Reserved |
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Universal Serial Bus (USB) Controller | 107 | |
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