9.3.8.5 RX_FIFO_SIZE_REG Bit Definitions
| Bit Number | Name | Reset Value | Function |
|---|---|---|---|
| 4 | DPB | 0 | Defines whether double-packet buffering is supported. When ‘1’, double-packet buffering is supported. When ‘0’, only single-packet buffering is supported. |
| [3:0] | SZ[3:0] | 0 | Maximum packet size to be allowed for (before any splitting within the FIFO of bulk/high-bandwidth packets prior to transmission). 00 00: 8 Bytes 0 001: 16 Bytes 0010: 32 Bytes 0011: 64 Bytes 0100: 128 Bytes 0101: 256 Bytes 0110: 512 Bytes 0111: 1,024 Bytes 1000: 2,048 Bytes 1001: 4,096 Bytes If DPB = 0, the FIFO will also be this size; if DPB = 1, the FIFO will be twice this size. |