Test Descriptions; Introduction; Register Test - HP Series 37 Reference Manual

TEST DESCRIPTIONS
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3.0 INTRODUCTION
This section of the manual describes the test sections of the PICDIAG.
3.1 REGISTER TEST
The register test section is composed of four steps that verify the basic PIC functions:
Step 1. Roll Call (ROCL) Test - Verifies that the PIC responds correctly to the ROCL SIMB command.
This step tests part of the global command decoder and part of the poll response circuitry.
ROCL is verified at all available channel addresses in the Channel Address Test section.
Step 2. Channel Address Test verifies:
a. That the channel address can be read from registers 13 and I S. Tests the addressed
command decoder, the register select, the data drivers, and the slave handshake.
b. The channel address read with the OBSI SIMB command. Tests an additional portion of the
command decoder.
c. The channel address read with the OBn SIMB command.
Step 3. Register Initialization Test - Verifies that PIC registers 8, II, 12, 13, 14, and IS are correctly
read after issuing an INIT channel SIMB command. Only the non-ABI registers are tested at
this point because the data and control paths to them are simpler than those to the ABI. The
ABI registers are tested by the ABI verification.
Step 4. Storage Register Test - The PICDIAG performs a memory test on registers 9, 10, and part of 8
by using random data patterns to test the greatest range of data patterns in a reasonable
amount of time. The pattern halts when an error is encountered so that the error can be
repeated. A number of different error messages are displayed that attempt to identify the
error to the smallest set of components.
The bit error log shows a map of errors by register and bit.
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