37.8.2 USB Configuration Data Register
| Symbol | Description | Symbol | Description | Symbol | Description |
|---|---|---|---|---|---|
| R | Readable bit | HC | Cleared by Hardware | (Grey cell) | Unimplemented |
| W | Writable bit | HS | Set by Hardware | X | Bit is unknown at Reset |
| K | Write to clear | S | Software settable bit | — | — |
| Name: | CONFIGDATA |
| Offset: | 0x101F |
| Reset: | 0x0000 |
| Property: | Read-Only |
| Bit | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | |
| MPRXE | MPTXE | BIGENDIAN | HBRXE | HBTXE | DYNOFIFOSIZING | SOFTCONE | UTMIDATAWIDTH | ||
| Access | R | R | R | R | R | R | R | R | |
| Reset | x | x | 0 | x | x | x | 1 | 0 |
Bit 7 – MPRXE Automatic Amalgamation Option bit
| Value | Description |
|---|---|
| 0 | No automatic amalgamation |
| 1 | Automatic amalgamation of bulk packets is done |
Bit 6 – MPTXE Automatic Splitting Option bit
| Value | Description |
|---|---|
| 0 | No automatic splitting |
| 1 | Automatic splitting of bulk packets is done |
Bit 5 – BIGENDIAN Byte Ordering Option bit
| Value | Description |
|---|---|
| 0 | Little Endian ordering |
| 1 | Big Endian ordering |
Bit 4 – HBRXE High-Bandwidth RX ISO Option bit
| Value | Description |
|---|---|
| 0 | No High-bandwidth RX ISO support |
| 1 | High-bandwidth RX ISO endpoint support is selected |
Bit 3 – HBTXE High-Bandwidth TX ISO Option bit
| Value | Description |
|---|---|
| 0 | No High-bandwidth TX ISO support |
| 1 | High-bandwidth TX ISO endpoint support is selected |
Bit 2 – DYNOFIFOSIZING Dynamic FIFO Sizing Option bit
| Value | Description |
|---|---|
| 0 | No Dynamic FIFO sizing |
| 1 | Dynamic FIFO sizing is supported |
Bit 1 – SOFTCONE Soft Connect/Disconnect Option bit
| Value | Description |
|---|---|
| 0 | Soft Connect/Disconnect is not supported |
| 1 | Soft Connect/Disconnect is supported |
Bit 0 – UTMIDATAWIDTH UTMI+ Data Width Option bit
Always '0', indicating 8-bit UTMI+ data width.