Generic Interrupt Controller versions 3 and 4: Difference between revisions
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* PEs (Processor Interfaces) must implement either 16 or 24 bits of IntID. However, a system might have a mixture of PEs that support both sizes!
* The **Distributor and Redistributors must all implement the same number** of ID bits. The ID bits for the Distributor and Redistributor must not exceed the minimum IntID size implemented by any single PE in the system. I.e, the Distributor and Redistributor IntID bit-width cannot must be smaller than or equal to the bit width of the smallest PE bit-width.
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* If LPIs are supported, the Distributor and Redistributors must support at least 14 bits of IntID.
* If an ITS exists, the ITS may implement any bit-width up to or equal to the bit-width of the Redistributors; and this bit width must be a minimum of 14 bits.
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