Instruction manual

10.1 Sources of Errors and Interrupts
Several functional units are equipped for detecting and reporting errors. These
are:
• CPU (CPU)—ECC tree built in, plus internal error detection hardware
• TURBOchannel adapter (TC)—ECC tree for memory bus and parity tree for
scatter/gather map and TURBOchannel
• Bcache Controller (BCtl)—parity tree for Bcache tags
• TURBOchannel options—parity trees for TURBOchannel
• Dual SCSI ASIC (TCDS)—parity trees for SCSI adapters, TURBOchannel
and internal buffers.
• SCSI adapters (SCSI)—parity trees for TCDS and SCSI BUS data
10–2 Hardware Exceptions and Interrupts