Phase #5 Test - AT&T 3B2 Off-Line Diagnostic Manual

Phase Descriptions - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Phase #5 - ROM Check Sum Test
Phase Name:
Type:
Function:
Test:
Time:
Warnings:
Notes:
Phase #5 Test
Cartridge Tape ROM Check Sum (rom) Test
Demand
This phase verifies the integrity of the CTC ROM.
Test 1 - calculates a ROM check sum and compares it to the check sum stored
in ROM when the ROM was initially programmed.
3 seconds
None
The stored ROM check sum is offset 16 bytes from the end of the ROM address
space.
Test Number: 1
Function: This test verifies the integrity of the CTC ROM.
Procedure: A check sum is calculated by reading the CTC ROM. The calculated check sum
is compared with the check sum stored in ROM when the ROM was initially
programmed.
Hardware Tested: The CTC ROM is tested.
Data Returned: The number of the test that failed, the actual check sum value, and the
expected check sum value are returned.
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