Table9-1GIC Configuration ValuesItemsConfiguration ValuesAXIAMBAProtocol16SoftwareGenerated Interrupts (SGl)80PrivatePeripheral Interrupts (PPI)128Shared Peripheral Interrupts (SPI)256Priority LevelNoLegacy interrupt Support2NumberofCPUs10CPUInterfaceAXIIDWidth10DistributerAXIIDWidthSecurityDomains2 (SupportsTrustZonetechnology31LockableSPlsLegacydialog-(Legacy interrupts arenot used)SGIRegisterLevel SelectionOxF(defaultvalue)SPIRegisterLevelSelectionOx3FF(defaultvalue)PPIRegisterLevel SelectionOxF (default value)ppi_cx[0] -ppi_cx[5]; edgeppi_cx[6] ppi_cx[10]: levelppi_cx[11]:edgePPI sensitivityppi_cx[12]: levelppi_cx[13] - ppi_cx[14]: edgeppi_cx[15]: levelPPIRegisteringSynchranizesb(forabRP-711Synchronized (forallSPI)SPIRegistering
11 ARM08 2019-4-7
9.1.4 Terminologies12 9.1.4.1 Interrupt States 9.1.4.2 Interrupt Types 9.1.4.3 Spurious Interrupts 9.1.4.4 Security States 9.1.4.5 Interrupt BankingARM082019-4-7
9.1.4 Terminologies 9.1.4.1 Interrupt States 9.1.4.2 Interrupt Types 9.1.4.3 Spurious Interrupts 9.1.4.4 Security States 9.1.4.5 Interrupt Banking ARM08 2019-4-7 12
9.1.4.1InterruptStates13 Inactive: is not active or pending Pending:is waiting for serviceActive:isbeingservicedbuthasnotcompleted Active and Pending:a processorthatis servicingthe interrupt and GlhasapendinginterruptfromthesamesourceARMO82019-4-7
9.1.4.1 Interrupt States Inactive: is not active or pending Pending: is waiting for service Active: is being serviced but has not completed Active and Pending: a processor that is servicing the interrupt and GIC has a pending interrupt from the same source ARM08 2019-4-7 13
9.1.4.2 Interrupt Types14 Peripheral and Software Edge and Level1-N and N-NARM082019-4-7
9.1.4.2 Interrupt Types Peripheral and Software Edge and Level 1-N and N-N ARM08 2019-4-7 14
Peripheral and Software13PeripheralinterruptPPl (Private Peripheral Interrupt)toa single processorSPI (Shared Peripheral Interrupt)to anyprocessors Software interruptSGl(SoftwareGeneratedInterrupt)SGlisusedforinter-processorcommunicationSGlhasedge-triggeredproperties On a peripheral input, the software triggering of the interrupt is equivalentto the edgetransitionof the interrupt signalARM082019-4-7
Peripheral and Software Peripheral interrupt PPI (Private Peripheral Interrupt) to a single processor SPI (Shared Peripheral Interrupt) to any processors Software interrupt SGI (Software Generated Interrupt) SGI is used for inter-processor communication SGI has edge-triggered properties On a peripheral input, the software triggering of the interrupt is equivalent to the edge transition of the interrupt signal ARM08 2019-4-7 15