35.7.5.10 Length
| 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: | LENGTH |
| Offset: | 0x22 |
| Reset: | 0x0000 |
| Property: | Write-Synchronized |
| Bit | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | |
| LENEN | |||||||||
| Access | R/W | ||||||||
| Reset | 0 |
| Bit | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | |
| LEN[7:0] | |||||||||
| Access | R/W | R/W | R/W | R/W | R/W | R/W | R/W | R/W | |
| Reset | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |
Bit 8 – LENEN Data Length Enable
In 32-bit Extension mode, this bit field enables the length counter.
| Value | Description |
|---|---|
| 0 | Length counter disabled |
| 1 | Length counter enabled |
Bits 7:0 – LEN[7:0] Data Length
In 32-bit Extension mode, this bit field configures the data length after which the flags INTFLAG.RCX or INTFLAG.DRE are raised.
| Value | Description |
|---|---|
| 0x00 | Reserved if LENEN=0x1 |
| 0x01-0xFF | Data Length |