Motorola MVME712A/D3 User Manual download pdf (Page 167)

VSB Interface ASIC (VSB2) Tests

MVME167BUG/D3 3-123

Local Walking Bit - L_WKB

This test verifies that the bits of the VSBchip2 registers can be individually set

and cleared as specified. All ÒreservedÓ bits, Òread-onlyÓ bits, Òread-and-set-

onlyÓ bits, and Òread-and-clear-onlyÓ bits are omitted by this test.

Command Input:

166-Diag>VSB2 L_WKB

Response/Messages:

After the command has been issued, the following line is printed:

VSB2 L_WKB: Local Walking Bit.................... Running --->

If all parts of the test are completed correctly, then the test passes:

VSB2 L_WKB: Local Walking Bit................ Running ---> PASSED

If the test fails because of an unexpected exception, the display is:

VSB2 L_WKB: Local Walking Bit................ Running ---> FAILED

VSB2/L_WKB Test Failure Data:

Unexpected exception processed

Exception vector number = ___

Address = ________

If the test fails when the VSB bus is requested, but not granted, the following

is displayed:

VSB2 L_WKB: Local Walking Bit................ Running ---> FAILED

VSB2/L_WKB Test Failure Data:

Test aborted: Unable to acquire VSB within 3 msec

If the test fails due to a bit not being properly initialized:

VSB2 L_WKB: Local Walking Bit................ Running ---> FAILED

VSB2/L_WKB Test Failure Data:

verfbf: Bit Field Initialization error.

Address ________

Read Data ________

Failing Bit Number __ (___)

Expected Bit Value _

Actual Bit Value _

Exempt Bits Mask ________

1 2 ... 162 163 164 165 166 167 168 169 170 171 172 ... 238 239

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Motorola MVME712A/D3 User Manual Page 167