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HANDSHAKE
INTERFACE
Pin
Nomenclature
1
DIO-1 Data
In/Out
Bit
1
(LSB)
2
DIO-2 Data
In/Out
Bit
2
3
DIO-3 Data
In/Out
Bit
3
4
DIO-4 Data
In/Out
Bit 4
13
DIO-5 Data
In/Out
Bit
5
14
DIO-6 Data
In/Out
Bit
6
15
DIO-7 Data
In/Out
Bit
7
16
DIO-8 Data
In/Out
Bit
8
6
DAV
(Data
Valid)
7
NRFD
(Not
Ready
for
Data)
8
NDAC
(Not
Data Accepted)
5
EOI
(End
or Identify)
9
IFC
(Interface Clear)
10
SRQ
(Service Request)
11
ATN
(Attention)
17
REN
(Remote
Enable)
12
SHIELD
18
GND
(6)
19
GND
(7)
20
GND
(8)
21
GND
(9)
22
GND
(10)
23
GND
(11)
24
GND
(5
and
17)
Description
Data
lines
are used
to
transfer
data from one
instrument
to
another
Handshake
lines
operate
in
a proper
time sequence
for
complete communication
between
instruments
Interface
lines
are
used
to
provide an orderly flow of
information
between
units
Figure
4.2
- Interface Signal
Pin Assignments
/l_9
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