Apple Apple-1 - Page 12

If more
than
one
source for
RDY
use open—
collector
gate
7401 (not
'00)
cs
—
^FV
(Slow
ROM
I
T_X
address
decoded)
RUN
»
)rdy^
>
SLOW
ROM
<
SYNC|
J7474
g
I 1
27
°
A
R
Q
**°*
—
•
»1D
needed
only
for
single
INST
R
mode
SINGLE
CYCLE
(NOTE:
Features
not
needed may
be omitted)
SINGLE
STEP FOR 6502
ADDRESS
DISPLAY
Al
A2
A3
A4
A5
A6/0
A7/1
A8/2
A9/3
A10/4
All/5
A12
A13
A14
A15
CsYNCf
-
7417
'4
Q0
Ql
Q2
Q3
Q4
Q5
CL
CL
Q0
Ql
Q2
Q3
Q4
Q5
14174
CL
D0
Q0
Dl Ql
D2
Q2
D3
Q3
D5
Q5
74174
100
100
100
-wv-
100
100
100
-VSAr-.
100
100
100
-wv-
100
100
AAA*-
100
AA/Nr
100
100
100
AAAr
100
100
Wr
A0
Al
A2
^
e
A3
A4
e
e
A5
^
e
A6
A7
A8
€>
e
A9
A10
e
®
All
^
e
A12
A13
A14
e
^
A15
e
e
SYNC
^
-12-