Texas Instruments 990 User Manual page 211

Error Messages
A.l.5 Fatal Data Link Errors
The following errors cause an interruption of processing:
Error
Code
61
62
63
64
65
66
67
68
69
6A
6B
6C
6D
6E
6F
70
71
72
73
74
75
77
78
79
7A
7B
7C
2270526-9701
Meaning
FCCC power failure
FCCC memory parity error
Illegal level 3 interrupt
Illegal level 4 interrupt
Illegal level 5 interrupt
Illegal level 6 interrupt
Illegal level 7 interrupt
Illegal level
8
interrupt
Illegal level 9 interrupt
Illegal level A interrupt
Illegal level
B
interrupt
Illegal level C interrupt
Illegal level D interrupt
Illegal level E ~nterrupt
Illegal level F interrupt
Illegal XOP encountered
FCCC TMS 9900 self-test error
FCCC HOM CRC error during ROM test
FCCC
RAM
data test error
FCCC TMS 9901 clock test failure
FCCC channel test failure
Memory parity error not set by reset
No interrupt from memory parity error
Cannot clear memory parity error
TILINE time-out error not set by reset
Cannot clear TILINE error
RAM refresh error
A-7