8
Installing the PC32 in the Computer
Programs can read data from or write data to the board using 2 I/O ports from a block
of four addresses. The base I/O address can be set up in a wide range using the DIL
switch on the board. When being shipped, the board´s address is set to 300h corre-
sponding to the default address used by the utility software. If one of the levers 8, 9, or
10 of the DIL switch is set to the ON position, the radio remote clock PC32 can
generate cyclic hardware interrupts on the PC's corresponding interrupt line. Howe-
ver, if the clock is operated using the software shipped with the board, all of the
interrupt switches should remain in the OFF position because the software shipped
with the board does not use any hardware interrupt.
SW
IRQ
8
3
9
4
10
7
In most cases the board can be installed without modifications. If another board uses I/
O in the range 300h to 303h the PC32´s base address must be changed. Lever 1 of the
DIL switch is assigned to the PC's address line A2, lever 7 is assigned to A8, A9 is
hard wired to logical "1". Any switch in the ON position ties the corresponding
address line to logical "0". Some common port base addresses and the corresponding
DIL switch settings are shown in the table below:
Use the table shown below to see the DIL switch settings and corresponding I/O
addresses.
Port SW1
2
3
4
5
6
7
Port SW1
2
3
4
5
6
7
200
x
x
x
x
x
x
x
32C
-
-
x
-
x
x
-
204
-
x
x
x
x
x
x
330
x
x
-
-
x
x
-
208
x
-
x
x
x
x
x
334
-
x
-
-
x
x
-
20C
-
-
x
x
x
x
x
338
x
-
-
-
x
x
-
210
x
x
-
x
x
x
x
33C
-
-
-
-
x
x
-
214
-
x
-
x
x
x
x
340
x
x
x
x
-
x
-
218
x
-
-
x
x
x
x
344
-
x
x
x
-
x
-
21C
-
-
-
x
x
x
x
348
x
-
x
x
-
x
-
300
x
x
x
x
x
x
-
34C
-
-
x
x
-
x
-
304
-
x
x
x
x
x
-
350
x
x
-
x
-
x
-
308
x
-
x
x
x
x
-
354
-
x
-
x
-
x
-
30C
-
-
x
x
x
x
-
358
x
-
-
x
-
x
-
310
x
x
-
x
x
x
-
35C
-
-
-
x
-
x
-
314
-
x
-
x
x
x
-
360
x
x
x
-
-
x
-
318
x
-
-
x
x
x
-
364
-
x
x
-
-
x
-
31C
-
-
-
x
x
x
-
368
x
-
x
-
-
x
-
320
x
x
x
-
x
x
-
36C
-
-
x
-
-
x
-
324
-
x
x
-
x
x
-
370
x
x
-
-
-
x
-
328
x
-
x
-
x
x
-
374
-
x
-
-
-
x
-
‘x’ —> switch in pos. ON ‘-’ —> switch in pos. OFF
Содержание DCF77 PC32
Страница 1: ...Technical Information Operating Instructions FUNKUHREN DCF77 PC32 ...
Страница 4: ...4 Driver Diskette for DOS Windows ...
Страница 6: ...6 ...
Страница 21: ...21 PC32 Component Layout ...
Страница 22: ......