1260-00C User Manual
Diagnostic Tests 6-5
Diagnostic Test
Groups
Group 1-RAM
This group tests the RAM to ensure the CPU can correctly read
and write from RAM addresses. Table 6-3 gives the test
numbers and names of the RAM tests.
Table 6-3. RAM Tests
Test Number
Test Description
1
Data Path Test
2
Self-Test Cell Test (not exhaustive)
3
Cell Test
4
Read and Modify Write Test
Group 2-68070 CPU
This group tests the 68070 I
2
C interface, UART interface, and
timers. Tests 5 through 7 test the 68070 I
2
C interface; Tests 8
through 18 test the UART interface; and Tests 19 through 21
test the timers. Table 6-4 gives the test numbers and names of
the 68070 CPU tests.
Table 6-4. 68070 CPU Tests
Test Number
Test Description
5
I
2
C Interface Test - Maximum Clock Frequency
6
I
2
C Interface Test - Minimum Clock Frequency
7
I
2
C Interface Test - Interrupt Trigger
8
Test Baud Rate 75
9
Test Baud Rate 150
10
Test Baud Rate 300
11
Test Baud Rate 1200
12
Test Baud Rate 2400
13
Test Baud Rate 4800
14
Test Baud Rate 9600
15
Test Baud Rate 19200
16
Baud = 9600; test odd parity with two stop bits
17
Baud = 9600: test even parity with two stop bits
18
Baud = 9600; test interrupts
19
Test Timer 0 interrupt capability
20
Test Timer 1 matched mode
21
Test Timer 2 matched mode
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