Honeywell LEVEL 6 Operation Manual page 23

TABLE 3-6. STATUS BIT DEFINITIONS
Status Condition Bit
Device Ready
0
Data Service 2
Rate Error
Non Existent 13
Resource
ASCII Error 8
Bus Parity 14
Noncorrectable 15
Memory Error
Read Check
7
Corrected Memory
12
Error
Attention 1
Mark Sense Mode 3
40 Column
4
51 Column
5
External Clock 6
Track
Definition
Card reader on. Motor running. Input hopper not
empty. Output hopper not full.
The MDC/CP/BUS have failed to meet the card reader
speed and data has been lost.
A NAK was received from memory. Indicates possible
programming error.
A pattern from card which does not translate to ASCII
(in ASCII mode only). Data in error forced to all Ones
Parity incorrect on bus transfer toward MDC.
The card reader never reads memory and will never
receive this error indication CBS REDD-) from memory.
The card reader, failed to meet a light·dark check in­
dicating possible device failure.
The card reader never reads memory and will never
receive this indication from memory (BSYELO-).
Device ready condition has changed.
The Mark Sense/STD which on the card reader is in the
Mark Sense mode.
The 40/80 column switch on the card reader is in the
40 Col. position.
The 51/80 column switch on the card reader is in the
51 Col. position.
The clock track internal clock switch on the card
reader is in the clock track position.
Reset By
A change in condition.
Next IOLD command.
Next IOLD command.
Next IOLD command.
Next IOLD command.
-
Next IOLD command.
Next IOLD command.
Read status word 1.
A change in switch
position.
A change in switch
position.
A change in switch
position.
A change in switch
position.
UNCORRECTABLE MEMORY ERROR
BUS PARITY
NON EXISTANT RESOURCE
CORRECTED MEMORY ERROR
ASCII CODE ERROR
READ CHECK ERROR
EXTERNAL CLOCK TRACK
51-COLUMN MODE
40-COLUMN MODE
MAR K SENSE MODE
DATA SERVICE RATE ERROR
ATTENTION
DEVICE READY
Figure 3-6. Status Bit Assignment
CARD READER DEVICES 3-6
AT04