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PC87108AVHG Datasheet(PDF) 39 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part # PC87108AVHG
Description  Advanced UART and Infrared Controller
PDF  56 Pages
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Manufacturer  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

PC87108AVHG Datasheet(HTML) 39 Page - National Semiconductor (TI)

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3.0 Architectural Description (Continued)
B4–0
MCFR [4–0] – Modulation Subcarrier Frequency.
Selects the frequency for the CEIR modulation subcarrier.
Encoding
Low Frequency, TXHSC = 0
High Frequency, TXHSC = 1
00000
Reserved
Reserved
00001
Reserved
Reserved
00010
Reserved
Reserved
00011
30 kHz
400 kHz
00100
31 kHz
Reserved
00101
32 kHz
Reserved
00110
33 kHz
Reserved
00111
34 kHz
Reserved
01000
35 kHz
450 kHz
01001
36 kHz
Reserved
01010
37 kHz
Reserved
01011
38 kHz
480 kHz
01100
39 kHz
Reserved
01101
40 kHz
Reserved
01110
41 kHz
Reserved
01111
42 kHz
Reserved
10000
43 kHz
Reserved
10001
44 kHz
Reserved
10010
45 kHz
Reserved
10011
46 kHz
Reserved
10100
47 kHz
Reserved
10101
48 kHz
Reserved
10110
49 kHz
Reserved
10111
50 kHz
Reserved
11000
51 kHz
Reserved
11001
52 kHz
Reserved
11010
53 kHz
Reserved
11011
54 kHz
Reserved
11100
55 kHz
Reserved
11101
56 kHz
Reserved
11110
56.9 kHz
Reserved
11111
Reserved
Reserved
B7–5
MCPW [2–0] – Modulation Subcarrier Pulse Width.
Encoding
Low Frequency, TXHSC = 0
High Frequency, TXHSC = 1
(Consumer-IR only)
(Consumer-IR or Sharp-IR)
000
Reserved
Reserved
001
Reserved
Reserved
010
6 µs
0.7 µs
011
7 µs
0.8 µs
100
9 µs
0.9 µs
101
10.6 µs
Reserved
Bits
B7
B6
B5
B4
B3
B2
B1
B0
Function
MCPW2
MCPW1
MCFW0
MCFR4
MCFR3
MCFR2
MCFR1
MCFR0
Reset State
01101001
FIGURE 29. Infrared Transmitter Modulator Control Register
www.national.com
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