AT&T 3B2 Off-Line Diagnostic Manual page 513
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Also See for 3B2:
- Maintenance reference manual (422 pages) ,
- Operation manual (415 pages) ,
- Manual (54 pages)
Table of Contents
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- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Phase Descriptions
Test Numbers:
29 through 40
Function:
These tests verify that the Direct Memory Access 0 (DMAO) and DMAI Control
registers are functional.
Procedure:
A valid data pattern is written to the register, and then the register is read and
verified.
Hardware Tested:
The DMAO and DMAI Control registers are tested.
Data Returned:
The number of the test that failed, the actual data, and the expected data are
returned.
Notes:
The values written to the registers are OxO, OxOOOl, Ox0002, and Ox0004.
Test Numbers:
41 through 56
Function:
These tests verify that the Interrupt 0 (INTO) and INTI Control registers are
functional.
Procedure:
A valid data pattern is written to the register, and then the register is read and
verified.
Hardware Tested:
The INTO and INTI Control registers are tested.
Data Returned:
The number of the test that failed, the actual data, and the expected data are
returned.
Notes:
The values written to the registers are OxO, OxOOOl, Ox0002, Ox0004, Ox0008,
OxOOlO, Ox0020, Ox0040, and Ox0080.
Test Numbers:
57 through 69
Function:
These tests verify that the INT2 and INT3 Control registers are functional.
Procedure:
A valid data pattern is written to the register, and then the register is read and
verified.
Hardware Tested:
The INT2 and INT3 Control registers are tested.
Data Returned:
The number of the test that failed, the actual data, and the expected data are
returned.
Notes:
The values written to the registers are OxO, OxOOOl, Ox0002, Ox0004, Ox0008,
and OxOOlO.
EXPANSION DISK CONTROLLER DIAGNOSTICS
11-19
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