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5471 CONSOLE 1/0 SENSE
Op
QCode
Operand 1
Code
DA
M
N
0
78
11 12 13
15 16
30
Operand 1
=
2 bytes Direct addressing
1
Byte 1
=
Operand 1 address
70
Operand 1
=
1 byte Indexed by XR-1
l
Byte 2
=
Operand 1 address-1
BO
Operand 1
=
1 byte Indexed by XR-2
0001
Device address 5471
( 1)
0
Selects keyboard
1
Selects printer
Low Core Address
H~h
Core Address
001
Byte 2 (EB2)
Byte 1 (EB 1)
0 Spare
0 Req key int pending
1 Spare)
1 End or cancel int pending
2 B
2 Cancel key
3 A
(
3 End key
4 8
)Card
4 Return or data key
(code
interrupt pending
5 4
)
5 Return key
6 2
6 Keyboard translator check
7 1
7 Keyboard data check
011
0 Keyboard mode switch 0 Request key enabled
1 p \
1 Data key enabled
2 B )
2 Strobe switch
3 A
Keyboard
3 Strobe switch sampled
4 8 I
code
4 Request-end-cancel key
)
5 4
5 Request-end-cancel key
6 2 )
sampled
6
Keyboard shifting
7 1
I
7 Reserved
Printer (M bit 1)
001
0 Enable printer
0 Printer interrupt pending
1 5.24 msec
1 Reserved
2 2.68 sec
2 Unprintable character
3 Cycle FL
3 Printer busy
4 Reserved
4 End of line
I
5
Feedback too late
5 End of form
I
6 Extra cycle
6 Print translator check
7 Cycle too long
7 Printer malfunction
011
0 Shift mode switch
0 Lower shift required
1 No print
1 Upper shift required
2 T2
2 Reserved
3 Tl
3 Feedback switch
4 R5
4 Feedback switch sampled
5 R2A
5 Long function switch
6 R2
6
Long function switch sampled
7 R1
7 CE SNS bit (active for MST
*
down level at A-B2N2U06)
xx xx
xx xx
Operand address (sense bytes destinations)
*Note: All other N codes invalid.
Figure 1-15. 5471Console1/0 Sense Bytes
1-18 (1/71)
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