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GMS81C5108 Datasheet, PDF (81/102 Pages) Hynix Semiconductor – HYNIX SEMICONDUCTOR INC. 8-BIT SINGLE-CHIP MICROCONTROLLERS
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GMS81C5108
Carrier Frequency
tH
tL
Pulse of Data
tDH
ROD0 = 01H
tDL
ROD0 = 00H
As soon as the carrier interrupt is occurred,
the content of ROB is transferred to RODR.
Figure 20-3 Carrier Frequency & Pulse of Data
The Table 20-1 shows high and low length of carrier fre-
quency according to CFLS and CFHS. This only shows
when the source clock is selected fMAIN and fMAIN÷22 at
4MHz.
Set Value
CFHS CFLS
00H
01H
02H
03H
04H
05H
06H
07H
08H
09H
0AH
0BH
0CH
0DH
0EH
0FH
10H
11H
12H
13H
14H
15H
16H
17H
18H
19H
1AH
1BH
1CH
1DH
1EH
1FH
00H
01H
02H
03H
04H
05H
06H
07H
08H
09H
0AH
0BH
0CH
0DH
0EH
0FH
10H
11H
12H
13H
14H
15H
16H
17H
18H
19H
1AH
1BH
1CH
1DH
1EH
1FH
Selection of PS0
Selection of PS2
Set Value
Selection of PS0
tH(us)
tL(us)
tH(us)
tL(us)
CFHS CFLS tH(us)
tL(us)
-
-
-
-
0.25
0.25
1.00
1.00
0.50
0.50
2.00
2.00
0.75
0.75
3.00
3.00
1.00
1.00
4.00
4.00
1.25
1.25
5.00
5.00
1.50
1.50
6.00
6.00
1.75
1.75
7.00
7.00
2.00
2.00
8.00
8.00
2.25
2.25
9.00
9.00
2.50
2.50
10.00
10.00
2.75
2.75
11.00
11.00
3.00
3.00
12.00
12.00
3.25
3.25
13.00
13.00
3.50
3.50
14.00
14.00
3.75
3.75
15.00
15.00
4.00
4.00
16.00
16.00
4.25
4.25
17.00
17.00
4.50
4.50
18.00
18.00
4.75
4.75
19.00
19.00
5.00
5.00
20.00
20.00
5.25
5.25
21.00
21.00
5.50
5.50
22.00
22.00
5.75
5.75
23.00
23.00
6.00
6.00
24.00
24.00
6.25
6.25
25.00
25.00
6.50
6.50
26.00
26.00
6.75
6.75
27.00
27.00
7.00
7.00
28.00
28.00
7.25
7.25
29.00
29.00
7.50
7.50
30.00
30.00
7.75
7.75
31.00
31.00
20H
21H
22H
23H
24H
25H
26H
27H
28H
29H
2AH
2BH
2CH
2DH
2EH
2FH
30H
31H
32H
33H
34H
35H
36H
37H
38H
39H
3AH
3BH
3CH
3DH
3EH
3FH
20H
21H
22H
23H
24H
25H
26H
27H
28H
29H
2AH
2BH
2CH
2DH
2EH
2FH
30H
31H
32H
33H
34H
35H
36H
37H
38H
39H
3AH
3BH
3CH
3DH
3EH
3FH
8.00
8.25
8.50
8.75
9.00
9.25
9.50
9.75
10.00
10.25
10.50
10.75
11.00
11.25
11.50
11.75
12.00
12.25
12.50
12.75
13.00
13.25
13.50
13.75
14.00
14.25
14.50
14.75
15.00
15.25
15.50
15.75
8.00
8.25
8.50
8.75
9.00
9.25
9.50
9.75
10.00
10.25
10.50
10.75
11.00
11.25
11.50
11.75
12.00
12.25
12.50
12.75
13.00
13.25
13.50
13.75
14.00
14.25
14.50
14.75
15.00
15.25
15.50
15.75
Table 20-1 Length of Carrier Frequency (at 4MHz)
Selection of PS2
tH(us)
tL(us)
32.00
33.00
34.00
35.00
36.00
37.00
38.00
39.00
40.00
41.00
42.00
43.00
44.00
45.00
46.00
47.00
48.00
49.00
50.00
51.00
52.00
53.00
54.00
55.00
56.00
57.00
58.00
59.00
60.00
61.00
62.00
63.00
32.00
33.00
34.00
35.00
36.00
37.00
38.00
39.00
40.00
41.00
42.00
43.00
44.00
45.00
46.00
47.00
48.00
49.00
50.00
51.00
52.00
53.00
54.00
55.00
56.00
57.00
58.00
59.00
60.00
61.00
62.00
63.00
78
JUNE 2001 Ver 1.0
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