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Board Description and Memory Maps

SCSI Parity Error

Note The 400/500-Series MVME172 models do not contain parity DRAM.

Description:

Parity error detected while the 53C710 was reading DRAM.

MPU Notification:

53C710 Interrupt.

Status:

53C710 DMA Status Register 53C710 DMA Interrupt Status Register MC2 chip SCSI Error Status Register ($FFF4202C).

Comments:

53C710 interrupt enables are controlled in the 53C710 and in the MC2 chip SCSI Interrupt Control Register ($FFF4202F).

SCSI Off-Board Error

Description:

Error encountered while the 53C710 was attempting to go to the VMEbus.

MPU Notification:

53C710 Interrupt.

Status:

53C710 DMA Status Register 53C710 DMA Interrupt Status Register MC2 chip SCSI Error Status Register ($FFF4202C).

Comments:

53C710 interrupt enables are controlled in the 53C710 and in the MC2 chip SCSI Interrupt Control Register ($FFF4202F).

SCSI LTO Error

Description:

Local Bus Time-out occurred while the 53C710 was local bus master.

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Motorola MVME172 manual Scsi Parity Error, Scsi Off-Board Error, Scsi LTO Error