AT&T 3B2 Off-Line Diagnostic Manual page 468

Phase Descriptions - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Test Number: 3
Function: This test verifies that DMAI from the SBD to the EPORTS card is functional.
Procedure: Perform PIO to the SBD, DMA that data to the I/O board, and compare the
value written with the value that was read.
Hardware Tested: The EPORTS DMAI is tested.
Data Returned: Supplemental Data: The value that was written.
Raw Data: The value that was read.
Notes: None
Test Number: 4
Function: This test verifies that DMAI from the EPORTS card to the SBD is functional.
Procedure: Write EPORTS RAM, DMA that data to the SBD, and compare the value
written with the value that was read.
Hardware Tested: The EPORTS DMAI is tested.
Data Returned: Supplemental Data: The value that was written.
Raw Data: The value that was read.
Notes: None
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