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Section
III
Port address functions :
. These functions each return the address of the specified port number. They are
used
as
subprograms. Table 3-4. lists the port address functions.
Port Name
(DISCONNECT)
SMU
Port
1
Port
2
SMU
3
S�IU
Port
4
S�!U
Port
·Vs
Port
1
2
Vs
Port
Vrn
Port
1
Vm
Port
2
GUARD for
SMU Port 1
'Port number 7 of the 40SSA i s not used for 408SM applications
3-41. PROG RA M M I N G EXAM PLES
3-4 2. Figure 3-1 0 shows a sample program that (1) establish es the port-to- pin connecti ons
necessar y for measuri ng a bipolar transisto r, (2) calls a user-wri tten m easurem ent
subprogra m , and (3) cancels all existing port.,-to-p in connectio ns after the m easureme nt.
The Connect subprogr am is used to establish the necessar y connecti ons, and the
Swm _clear sub program is used to cancel the connect ions.
This sample program establishes the connections shown below.
Figure 3-1 0. Sam ple Program for Measuring a Bipolar Transistor (Sheet
3-16
port
address param eter
the
Table 3-4. Port Address Functions .
Port*
Number
FNPort (O)
I
FNPort (l)
2
FNPort (2)
3
FNPort (3)
4
FNPort (4)
5
F N P
FNPort (6)
6
8
FNPort (8)
9
FNP
10
FNPort (10) or FNPort ( - I )
Pin2
Pinl
�
of
the
Connect
Port Address
Function
FNSmu (l)
FNSmu (2)
FNSmu (3)
FNSrnu (4)
1:
o
r
(S)
o
rt (9)
FNSrnu ( - I ) .
S�!u2
�
MU
�
Model 4085M
and ·Connect_th
FNVs (1)
FNVs (2)
FNVrn ( l )
FNVm (2)
FNGsmu
1
of 2)
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