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Registers XBTOI PPC (Address Bus Time-out Interrupt Enable) When this bit is set, the XBTO bit in the MERST register will be used to assert an interrupt through the MPIC interrupt controller. When this bit is clear, no interrupt will be asserted. XDPEI (PPC Data Parity Error Interrupt Enable) When this bit is set, the XDPE bit in the ESTAT register will be used to assert an interrupt through the MPIC. When this bit is clear, no interrupt will be asserted. PPERI (PCI Parity Error Interrupt Enable) When this bit is set, the PPER bit in the ESTAT register will be used to assert an interrupt through the MPIC interrupt controller. When this bit is clear, no interrupt will be asserted. PSERI (PCI System Error Interrupt Enable) When this bit is set, the PSER bit in the ESTAT register will be used to assert an interrupt through the MPIC interrupt controller. When this bit is clear, no interrupt will be asserted. PSMAI (PCI Master Signalled Master Abort Interrupt Enable) When this bit is set, the PSMA bit in the ESTAT register will be used to assert an interrupt through the MPIC interrupt controller. When this bit is clear, no interrupt will be asserted. PRTAI (PCI Master Received Target Abort Interrupt Enable) When this bit is set, the PRTA bit in the ESTAT register will be used to assert an interrupt through the MPIC interrupt controller. When this bit is clear, no interrupt will be asserted. PPC Error Status Register The Error Status Register (ESTAT) provides an array of status bits pertaining to the various errors that the PHB can detect. The bits within the ESTAT are defined in the following paragraphs. http://www.motorola.com/computer/literature 2-79 2