Atari CX 5200 Field Service Manual page 15

The primary function of the Alphanumeric Television Interface Controller (ANTIC)
chip is to get data from memory, independent of the processor, for display on the
video screen.
Figure 1-4 shows the pin assignments for the ANTIC.
GROUND
GTIA DATA
GTIA DATA
Pen
Light
GTIA DATA
NO, t Connected
Interrupt Output
Refresh
HALT
Address Bus
Address Bus
Address Bus
Address Bus
Read/Write
Ready
Address Bus
Address Bus
Address Bus
Address Bus
Address Bus
CX5200 Service
Field
VSS 1
•
AN�
2
t
3
AN
OS
4-
5
RNM1 6
NMI 7
REF 8
HALT 9
A3 10
A2 11
Al 12
A� 13
R/W 14-
ROY 15
16
AI0
A12 17
A13 1&
A14 19
A15 20
1-4. ANTIC Pin Assignments
Figure
Manual
40 D4-
D5
38 D6
37 D7
RES
36
FPhl
Ph}f
33 D3
32 D2
Dl
ANTIC
30 D0
Ph2
29
A4-
28
27 A5
26 A6
25
A8
A9
23
22 All
21
vee
1-5
Data Bus
Data Bus
Data Bus
Data Bus
Reset
Fast Phase 0 Clock
Phase 0 Clock
Data Bus
Data Bus
Data Bus
Data Bus
Phase 2 Clock
Address Bus
Address Bus
Address Bus
Address Bus
Address Bus
Address Bus
Address Bus
5V Power