
4. Using the I/O Address Map
20
CNT16-8(FIT)GY,
CNT16-8L(FIT)GY
Specifications Common to F&eIT Products
The starting I/O addresses from +0h - +Fh are common to all modules in the F&eIT series.
Product Information
Starting
I/O
address
D7 D6 D5 D4 D3 D2 D1 D0
Input
Product Category
Rivision Data
+0
(00h)
0 0 1 1
Revision
Data3
Revision
Data2
Revision
Data1
Revision
Data0
Product ID Number
+1
(01h)
0 0 0 0 0 0 0 1
Interruput Status
+2
(02h)
Enable(0) Status(0)
0
0
0
IRQ 9
(0)
IRQ 7
(0)
IRQ 5
(0)
Figure 4.5. Product Information < CNT16-8(FIT)GY >
-
Revision Data [D3 - D0]:
This is product update information, subject to change without notice, that is managed by CONTEC.
-
Product Category [D7 - D4]:
This is a module function classification code. For the CNT16-8(FIT)GY and CNT16-8L(FIT)GY,
the code is "1h".
Table 4.2. Product Category
Code Function
0 Bus
expansion
1 Digital
input-output
2 Analog
input-output
3 Counter
4 Serial
communications
5 GPIB
6-F Reserved
-
Products ID Number [D7 - D0]:
This is the product ID within the same product category.
CNT16-8(FIT)GY : 1h
CNT16-8L(FIT)GY : 2h
Following are examples of initialization coded in high-level languages:
Microsoft C
Microsoft QBASIC
ProductID = inp( ADR+1 );
ProductID = INP( ADR+1 )
* ADR is the starting I/O address for the CNT16-8(FIT)GY and CNT16-8L(FIT)GY.