AT&T 3B2 Off-Line Diagnostic Manual page 454

Phase Descriptions - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Test Numbers: 54 through 70
Function: These tests verify that the DMAO Source (low) register is functional.
Procedure: Write a valid data pattern to the register, read the register, and compare the
value read with the expected value.
Hardware Tested: The DMAO Source (low) register is tested.
Data Returned: Supplemental Data: The value that was written.
Raw Data: The value that was read.
Notes: The values written to the register are OxOO and walk a one through a field of 16
zeros.
Test Numbers: 76 through 90
Function: These tests verify that the DMA1 Control register is functional.
Procedure: Write a valid data pattern to the register, read the register, and compare the
value read with the expected value.
Hardware Tested: The DMA1 Control register is tested.
Data Returned: Supplemental Data: The value that was written.
Raw Data: The value that was read.
Notes: The values written to the register are Ox8000, Ox4000, Ox2000, Ox1000, Ox0800,
Ox0400, Ox0200, Ox0100, Ox0080, Ox0040, Ox0020, Ox0010, Ox0001, and OxOOOO.
Test Numbers: 91 through 107
Function: The tests verify that the DMA1 Terminal Count register is functional.
Procedure: Write a valid data pattern to the register, read the register, and compare the
value read with the expected value.
Hardware Tested: The DMA1 Terminal Count register is tested.
Data Returned: Supplemental Data: The value that was written.
Raw Data: The value that was read.
Notes: The values written to the register are OxOOOO and walk a one through a field of
16 zeros.
9-10 OFF-LINE DIAGNOSTIC MANUAL