Motorola MVME5100 Manual Do Utilizador

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Hawk Programming Details

The Hawk ASIC can detect certain hardware errors and can be 
programmed to report these errors via the MPIC interrupts or the Machine 
Check Interrupt. The following table summarizes how the hardware errors 
are handled by the MVME5100 series:

Single-bit ECC

Store: Write corrected data to memory
Load: Present corrected data to the MPC master
Generate interrupt via MPIC if so enabled

Double-bit ECC

Store: Terminate the bus cycle normally without writing to SDRAM
Load: Present uncorrected data to the MPC master
Generate interrupt via MPIC if so enabled
Generate Machine Check Interrupt to the Processor(s) if so enabled

MPC Bus Time Out

Store: Discard write data and terminate bus cycle normally
Load: Present undefined data to the MPC master
Generate interrupt via MPIC if so enabled
Generate Machine Check Interrupt to the Processor(s) if so enabled

PCI Target Abort

Store: Discard write data and terminate bus cycle normally
Load: Return all 1s and terminate bus cycle normally
Generate interrupt via MPIC if so enabled
Generate Machine Check Interrupt to the Processor(s) if so enabled

PCI Master Abort

Store: Discard write data and terminate bus cycle normally
Load: Return all 1s and terminate bus cycle normally
Generate interrupt via MPIC if so enabled
Generate Machine Check Interrupt to the Processor(s) if so enabled

PERR# Detected

Generate interrupt via MPIC if so enabled
Generate Machine Check Interrupt to the Processor(s) if so enabled

SERR# Detected

Generate interrupt via MPIC if so enabled
Generate Machine Check Interrupt to the Processor(s) if so enabled