The format of the transaction signals is shown in the following table. There are two sets of signals, one for reads and one for writes.
| Entry | Description |
|---|---|
| Offset address | Transaction address |
| User flags | SMID |
| Security flag | Protection (PROT) |
| Valid | Valid indicator |
| Hold | |
| Error flag | Pass/fail result |
| Read or write indicator | 0 = write, and 1 = read |
| Hide | Hide control from CTRL [HideAllowed] bit output from XMPU to protection wrapper |
| Sideband | Interrupt |