Table of Contents
Advertisement
Table 4-2. Reporting of Unexpected Results from Self Test
1"'f'\f"\L'
,",VVL.
LED
INDICATION
INDICATION
HEX
NO.
H I
J K
L M N
*
DESCRIPTION OF FAILURE
7A
1 1 1 1 0 1 0 1
The 82586 failed to clear its command word.
78
1 1 1 1 0 1 1 1 Self-Test Result register (R15)
bi~
0 bad.
7C
1 1 1 1 1 0 0 1
2-80 stack underflow during self-test.
70
1 1 1 1 1 0 1 1
Unexpected Z-80 Non-Maskable Interrupt (NMI).
7E
1 1 1 1 1 1 0 1
Unexpected 2-80 interrupt.
7F
1 1 1 1 1 1 1 1
The LANIC was reset, but self-test never started, or LED
circuitry failed.
Certain system resets will freeze
the LANIC processor and leave the LEOs in this state.
This condition, then, only indicates a LANIC failure at
power-on, when the self-test switch is pressed, or when
the LANIC diagnostic starts self-test.
*
ST (Selftest) LED
Note that the above codes are displayed withollt the
n*n
LED flashing.
Maintenance
4-8
Advertisement
Table of Contents
