Basic HTML Version
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For each switch row, one wire connects PIA port PBO to that
row's switches. This PIA port is configured as a pulse
receiver. If TIL-level pulses are present on the wire, the
microprocessor senses a switch closure.
-
For each switch column, one wire connects PIA port PAOto
that column's switches. This PIA port is configured as a
pulse
I'strobe'~
transmitter. Each column wire presents an
active-high, TIL-level pulse train to that column's switches .
.
_
Assume that the pinball closes a matrixed, playfield switch
(for example,
a
standup target).
Switch closure presents the
PIA column strobe with a path to the PIA row. The PIA port
connected to that row receives the strobe. When the strobe
falls to zero volts, the PIA records
(latches)
a change of
state.
ATLANTIS
SWITCH MATRIX
•
~
(1)
STO
(2)
ST1
(3)
ST2
(4)
ST3
(5)
ST4
(8)
ST6
WHT/RED WHT/BLU WHT/YEL
WHT/GRN WHT/BRN WHT/VIO
W CJ4-15
CJ4-14
CJ4-13
CJ4-12
CJ4-11
CJ4-1
(1)
10 DROP
COINS •
LEFT
LEFT
MIDDLE
RED
TARGET "1.
RIGHT'"
BOTTOM TARGET.
TARGET.
LEFT
BUMPER
ORANGE
ORANGE
CJ4-10
1
II
17
25
33
41
(2)
11 DROP
COINS.
MIDDLE
LEFT
MIDDLE
SUB BALL
BLUE TARGET
All!
LEFT "1
BUMPER
TARGET.
TARGET,
LOWER
CJ4-9
WHITE
WHITE
2
10
"
28
34
42
(3)
12 DROP
COINS.
RIGHT
LEFT
MIDDLE
SUB BALL
YELLOW TARGET'"
MIDDLE
All!
BUMPER
TARGET.
TARGET,
UPPER
CJ4-8
YELLOW YELLOW
3
11
111
27
35
43
(4)
13 DROP
TOP LANE LEFT
RIGHT
SPINNER BALL IN
GREEN TARGET",
"A"
SLINGSHOT TARGET,
SUBMARINE
RIGHT
ORANGE
CJ4-7
4
12
20
28
38
44
(5)
14 CABINET,
TOP LANE RIGHT
RIGIHT
RAMP
HOLD
WHITE LEFT
"B"
SLINGSHOT TARGET,
SENSOR BONUS
CJ4-8
WHITE
5
13
21
2f
37
45
(II)
15
CREDIT
SLAM
PLUG-POST RIGHT
LEFT
RETURN
BROWN
SENSOR
TARGET.
LANES
TROUGH "1
CJ4-4
YELLOW
,
14
22
30
3B
4B
(7)
18
CABINET,
TLT
LEFT
RE-
SAUCER
MIDDLE
ORANGE RIGHT
OUTLANE BOUNDERS
TROUGH
All!
CJ4-3
7
15
23
31
3'
47
(8)
17 OUTHOLE SHOOTER RIGHT
TURN
POPPER RIGHT
BLACK
LANE
OUTLANE AROUND DISH
TROUGH'"
CJ4-2
,
18
24
LOOP
32
40
4B
NOTE:
I • InpUt mid
8T •
SW_
CoIr.mne
7 .rid •
haw lIMn
omIIlH • .,,_ 1M)'
contain nUl
v__ In
"I_
matrix .
•
4-23