W83977F-A Datasheet, PDF (82/182 Pages) Winbond – WINBOND I/O

W83977F-A/ W83977G-A/ W83977AF-A/ W83977AG-A
This register defines frequency range of receiver of remote IR.
Bit 7~5: RX_FR2~0 - Receiver Frequency Range 2~0.
These bits select the input frequency range of the receiver. It is implemented through a
band pass filter, i.e., only the input signals whose frequency lies in the range defined in
this register will be received.
Bit 4~0: RX_FSL4~0 - Receiver Frequency Select 4~0.
Select the operation frequency of receiver.
Table: Low Frequency range select of receiver.
RX_FR2~0 (LOW FREQUENCY)
001
010
RX_FSL4~0
MIN.
MAX.
MIN.
MAX.
00010
26.1
29.6
24.7
31.7
00011
28.2
32.0
26.7
34.3
00100
29.4
33.3
27.8
35.7
00101
30.0
34.0
28.4
36.5
00110
31.4
35.6
29.6
38.1
00111
32.1
36.4
30.3
39.0
01000
32.8
37.2
31.0
39.8
01001
33.6*
38.1*
31.7
40.8
01011
34.4
39.0
32.5
41.8
01100
36.2
41.0
34.2
44.0
01101
37.2
42.1
35.1
45.1
01111
38.2
43.2
36.0
46.3
10000
40.3
45.7
38.1
49.0
10010
41.5
47.1
39.2
50.4
10011
42.8
48.5
40.4
51.9
10101
44.1
50.0
41.7
53.6
10111
45.5
51.6
43.0
55.3
11010
48.7
55.2
46.0
59.1
11011
50.4
57.1
47.6
61.2
11101
54.3
61.5
51.3
65.9
Note that those unassigned combinations are reserved.
011
MIN.
MAX.
23.4
34.2
25.3
36.9
26.3
38.4
26.9
39.3
28.1
41.0
28.7
42.0
29.4
42.9
30.1
44.0
30.8
45.0
32.4
47.3
33.2
48.6
34.1
49.9
36.1
52n.7
37.2
54.3
38.3
56.0
39.5
57.7
40.7
59.6
43.6
63.7
45.1
65.9
48.6
71.0
-74