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1.6 PR-KB (PRINTER-KEYBOARD) FIGURES 1-34 THROUGH 1-38
BCD Bijts
2
2
1
4
4
4
2
4
2
1
8
8
8
2
8
2
1
8
4
8
4
8
4
2
Space
2
3
4
EOB
5
Note 2
6
7
8
9
Cancel
0
Note 2
#
A
B
BA
@
&
a
k
b
c
u
m
d
v
n
e
w
0
x
p
9
y
q
h
z
$
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ! l l l ~ ~ l l ~ l l 1 1 1 1 1 1 1 1 1 1 1 1 1 ~ 1 ~
1!lillilllllii!lli lliiliillllliiiilliil
~IEN~
liiiilillliililllill
8
4
2
1
!illllilillllllililllililililllllllililll iililililililiiillillfliliililllilliilllil
LOWER CASE
A
B
BA
Space
¢
+
?
J
A
s
K
B
T
L
c
u
M
D
%
v
N
E
w
0
F
x
p
G
y
Q
H
z
R
llilllllililllilill illillilllllliHllllli!ll llf
ll' I A
llllllJf f liililillilif
~~N~
illf
f
lfl~1
iiii111
llllllll!llf
Ii
1111111' 1 !!.
11liiiri
UPPER CASE
Note 2: Alternate coding key must be pressed for EOB and Cancel
Figure 1-34. Input Code
f
rorr: Keyboard (PR-KB)
1-30 ( 7/69)
The keyboard code
characters are sent
to the CPU in 8-bit
form as fol°lows.
Bus-In
KB
Bits
Bits
0
:}
See
Note
2
B
1
3
A
4
8
5
4
6
2
7
Note 1:
x=1}
Uppercase
x
=
1
x = 0}
x=O
Lowercase
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