MODEL 104-DIO-48E and 104-DIO-24E USER MANUAL - Orbit Micro

Environmental
• Operating Temperature: 0 °C to +70 °C (optional -40 °C to +85 °C).
• Storage Temperature: -50 °C to +120 °C.
• Humidity: up to 95% RH, non-condensing.
ADDRESS
DECODE
AND
BUS
INTERFACE
PPI
GROUP
0
PORT A
PORT B
PORT C HI
PORT C LO
I/O
COMPUTER I/O BUS
DATA
BUFFERS
PPI
GROUP
1
PORT A
PORT B
PORT C HI
PORT C LO
B
U
F
F
E
R
S
C
O
N
N
E
C
T
O
R
C
O
N
N
E
C
T
O
R
IRQ
LEVEL
SELECT
INTERRUPT
ENABLE
DI/O INTERRUPT
1MHz
XTAL
I G I G I G
16-BIT
COUNTER
0
16-BIT
COUNTER
1
16-BIT
COUNTER
2
O
O
O
COUNTER 0
CLOCK INPUT
COUNTER 1
GATE INPUT
COUNTER 2
CLOCK OUTPUT
Figure 1-1: Block Diagram
7
Manual 104-DIO-48E, 24E