ISR (XPPU) Register Description
| Register Name | ISR |
|---|---|
| Relative Address | 0x0000000010 |
| Absolute Address |
0x00FF990010 (LPD_XPPU) 0x00F1310010 (PMC_XPPU) 0x00F1300010 (PMC_XPPU_NPI) |
| Width | 32 |
| Type | mixedMixed types. See bit-field details. |
| Reset Value | 0x00000000 |
| Description | Access Violations Interrupt Status |
If a Status bit is 1 and its Mask is 0, then the system IRQ interrupt signal is activated. The first AXI violation is recorded. Once an ISR[7:1] status bit is set, subsequent AXI violations are not recorded. ISR bits are cleared by a system reset and can be cleared by software by writing 1.
ISR (XPPU) Register Bit-Field Summary
| Field Name | Bits | Type | Reset Value | Description |
|---|---|---|---|---|
| Reserved | 31:8 | roRead-only | 0x0 | reserved |
| APER_PARITY | 7 | wtcReadable, write a 1 to clear | 0x0 | Aperture Parity Error detected for an aperture entry fetched from local RAM. 0: no error. 1: error detected. This parity checking is enable by setting CTRL [APER_PARITY_EN] = 1 |
| APER_TZ | 6 | wtcReadable, write a 1 to clear | 0x0 | TrustZone Violation; a non-secure transaction host attempted to access an aperture to a secure memory location. 0: no violation. 1: violation detected. |
| APER_PERM | 5 | wtcReadable, write a 1 to clear | 0x0 | Access Violation. The transaction host is not allowed to access the transaction aperture based on SMID. 0: no violation. 1: violation detected. |
| Reserved | 4 | roRead-only | 0x0 | reserved |
| SMID_PARITY | 3 | wtcReadable, write a 1 to clear | 0x0 | SMID Parity Error. One of the SMID entries fetched from the local registers contained a parity error. 0: no error. 1: error detected. This parity checking is enable by setting CTRL [MID_PARITY_EN] = 1. Note: Field name reference: MID_PARITY |
| SMID_RO | 2 | wtcReadable, write a 1 to clear | 0x0 | Read permission Violation. The transaction host attempted a write, but its SMID entry that is matching the request specifies read-only permission; SMID_xx [SMID_R] =1. 0: no violation. 1: violation detected. This violation checking is enable by setting CTRL [ENABLE] = 1 Note: Field name reference: MID_RO |
| SMID_MISS | 1 | wtcReadable, write a 1 to clear | 0x0 | System management ID (SMID) Not Found. The transaction's SMID, after masking is applied, doesn't match an SMID in the entry list. 0: no miss. 1: miss detected. Note: Field name reference: MID_MISS |
| INV_APB | 0 | wtcReadable, write a 1 to clear | 0x0 | Register Access Error on APB programming interface. Generated in two conditions: 1. A register access was requested to an unimplemented register location. 2. Non-secure APB transaction host accessing TZ secure APB programming interface The APB bus error signal is also asserted back to the interconnect. |