Pin |
Name |
Belegt für |
1 |
GND |
System Ground |
2 |
+5V |
System Vcc |
3 |
+5V |
System Vcc |
4 |
/IRQ |
Interrupt request |
5 |
R/W |
System Read/Write
Signal |
6 |
DClock |
8.18MHz Video Dot
Clock |
7 |
I/O1 |
I/O Chip select
$de00-deff |
8 |
/GAME |
Sensed for memory
map configuration |
9 |
/EXROM |
Sensed for memory
map configuration |
10 |
I/O2 |
I/O Chip select
$df00-dfff |
11 |
/ROML |
External ROM select
$8000-Bfff |
12 |
BA |
Bus available output |
13 |
/DMA |
Direct memory access
input |
14 |
D7 |
Data bit 7 |
15 |
D6 |
Data bit 6 |
16 |
D5 |
Data bit 5 |
17 |
D4 |
Data bit 4 |
18 |
D3 |
Data bit 3 |
19 |
D2 |
Data bit 2 |
20 |
D1 |
Data bit 1 |
21 |
D0 |
Data bit 0 |
22 |
GND |
System Ground |
|
|
|
A |
GND |
System Ground |
B |
/ROMH |
External ROM Select
$c000-ffff |
C |
/RESET |
System Reset Signal |
D |
/NMI |
Non-Maskable
Interrupt |
E |
1MHz |
System 1MHz clock |
F |
TA15 |
Translated address
bit 15 |
H |
TA14 |
Translated address
bit 14 |
J |
TA13 |
Translated address
bit 13 |
K |
TA12 |
Translated address
bit 12 |
L |
TA11 |
Translated address
bit 11 |
M |
TA10 |
Translated address
bit 10 |
N |
TA9 |
Translated address
bit 9 |
P |
TA8 |
Translated address
bit 8 |
R |
SA7 |
Shared address bit 7 |
S |
SA6 |
Shared address bit 6 |
T |
SA5 |
Shared address bit 5 |
U |
SA4 |
Shared address bit 4 |
V |
SA3 |
Shared address bit 3 |
W |
SA2 |
Shared address bit 2 |
X |
SA1 |
Shared address bit 1 |
Y |
SA0 |
Shared address bit 0 |
Z |
GND |
System Ground |