Arm
®
CoreLink™ GIC-600AE Generic Interrupt Controller
Technical Reference Manual
Document ID: 101206_0003_04_en
Issue: 04
Functional Safety
We assume that if a non-GIC rendered interconnect is used, the non-GIC interconnect either has
its own method of protecting the interconnect components or this protection is not required.
The following table lists the fault_* signals and the tie-off values.
Table 6-12: fault_* tie-off signals
Signal Block Tie-off value Description
fault_icpdp* PPI LOW Carries fault information from ADB to PPI, on the icpd/icdp bus
fault_icidi* LOW Carries fault information from ADB to ITS, on the icid/icdi bus
fault_external* LOW Carries fault information from ACE-bypass switch to ITS
fault_qchannel* LOW Carries Q-Channel fault information from LPD-CG to ITS
fault_qchannel_pwr*
ITS
LOW Carries Q-Channel fault information from LPD-PWR to ITS
fault_icwdw* Wake Request LOW Carries fault information from ADB to Wake Request, on the icwd/icdw bus
fault_iccdc* SPI Collator LOW Carries fault information from ADB to SPI Collator, on the iccd/icdc bus
fault_icpdp* LOW Carries fault information from ADB to GICD, on the icpd/icdp bus
fault_icidi* LOW Carries fault information from ADB to GICD, on the icid/icdi bus
fault_iccdc* LOW Carries fault information from ADB to GICD, on the iccd/icdc bus
fault_icwdw* LOW Carries fault information from ADB to GICD, on the icwd/icdw bus
fault_ace_switch* LOW Carries fault information from monolithic switch to GICD
fault_qchannel* LOW Carries Q-Channel fault information from LPD-CG to GICD
fault_qchannel_pwr*
GICD
LOW Carries Q-Channel fault information from LPD-PWR to GICD
6.10 P-Channel and Q-Channel protection
The P-Channel and Q-Channel logic and connections can be complex for topologies with multiple
clock or power domains.
The following figure shows a top-level example of a GIC topology with multiple clock domains.
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