Motorola MVME712A/D3 User Manual download pdf (Page 52)

Test Descriptions

3-8 167Bug Debugging Package UserÕs Manual

Data Patterns - PATS

If the test address range (test range) is less than 8 bytes, the test immediately

returns pass status. The effective test range end address is reduced to the next

lower 8-byte boundary if necessary. Memory in the test range is filled with all

ones ($FFFFFFFF). For each location in the test range, the following patterns

are used:

$00000000

$01010101

$03030303

$07070707

$0F0F0F0F

$1F1F1F1F

$3F3F3F3F

$7F7F7F7F

Each location in the test range is, individually, written with the current pattern

and the 1's complement of the current pattern. Each write is read back and

verified. This test is coded to use only 32-bit data entities.

Command Input:

167-Diag>RAM PATS

or:

167-Diag>SRAM PATS

Response/Messages:

Note that in all responses shown below, the response "RAM " is RAM or SRAM,

depending upon which test set is being performed. After the command has

been issued, the following line is printed:

RAM PATS: Patterns................... Running --->

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

RAM PATS: Patterns................... Running ---> PASSED

If the test fails, then the display appears as follows.

RAM PATS: Patterns................... Running ---> FAILED

Data Miscompare Error:

Address =________, Expected =________, Actual =_________

1 2 ... 47 48 49 50 51 52 53 54 55 56 57 ... 238 239

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Motorola MVME712A/D3 User Manual Page 52