Table 2-8. IGS/Disk Drive Error Codes

Code

Disk Drive Error Code Meaning

Go to TAG

 

 

 

401

Fatal IGS PB error

No TAG

 

 

 

450

Incorrect diskette

130

 

 

 

451

Diskette format error or incorrect disk

130

 

 

 

454

Fatal trap

200

 

 

 

455

Trap

200

 

 

 

500

Incorrect PIT0 registers contents; no reset

200

 

 

 

501

PIT0 register read/write error

200

 

 

 

502

No countdown/zero detection in PIT0 timer

200

 

 

 

503

PIT0 timer; no halt

200

 

 

 

504

No PIT0 timer interrupt

200

 

 

 

505

Incorrect PIT2 registers contents; no reset

200

 

 

 

506

PIT2 register read/write error

200

 

 

 

507

No countdown/zero detection in PIT2 timer

200

 

 

 

508

PIT2 timer; no halt

200

 

 

 

509

No PIT2/timer interrupt

200

 

 

 

520

No DMAC reset

200

 

 

 

521

DMAC registers read/write error

200

 

 

 

522

No DMA transfer

200

 

 

 

523

No DMA transfer termination

200

 

 

 

524

No DMAC termination interrupt

200

 

 

 

525

No software abort operation

200

 

 

 

526

No software abort interrupt

200

 

 

 

527

DMAC operation error

200

 

 

 

528

DMA transfer error

200

 

 

 

529

Two-channel DMA transfer error

200

 

 

 

530

No two-channel DMA transfer

200

 

 

 

540

PCL board serial controller registers read/write error

200

 

 

 

541

PCL board break condition detected

200

 

 

 

542

PCL board serial controller transmitter not ready

200

 

 

 

543

No PCL board serial controller transfer

200

 

 

 

544

PCL board serial controller transfer error

200

 

 

 

545

Host serial controller registers read/write error

200

 

 

 

546

Host transmitter not ready

200

 

 

 

547

No serial controller interrupts

200

 

 

 

548

Host serial controller/PCL board parity error

200

 

 

 

549

Serial controller unexpected interrupt

200

 

 

 

TAG Cross- Reference Tables

2-7