pc87307 National Semiconductor Corporation, pc87307 Datasheet - Page 162

• Manufacturer Part Number: pc87307
• Description: Plug And Play Compatible And Pc97 Compliant Superi/o
• Manufacturer: National Semiconductor Corporation

www.national.com
MCFR Bits
Encoding
TABLE 7-28. Consumer-IR Carrier Frequency
43210
00000
00001
00010
00011
00100
00101
00110
01000
01001
01010
01011
01100
01101
11010
00111
01110
11011
. . .
x x x x x x
DFR Bits
DFR Bits
4 3 2 1 0
0 0 0 1 1
0 1 0 0 0
0 1 0 1 1
4 3 2 1 0
TABLE 7-26. Consumer IR, High Speed Demodulator (RXHSC = 1) (Frequency Ranges in kHz)
Low Frequency
(TXHSC = 0)
min/max
min/max
reserved
reserved
reserved
30 KHz
31 KHz
32 KHz
33 KHz
34 KHz
35 KHz
36 KHz
37 KHz
38 KHz
39 KHz
40 KHz
41 KHz
53 KHz
54 KHz
max
max
max
max
min
min
min
min
Encoding
. . .
TABLE 7-27. Sharp-IR Demodulator (Frequency Ranges in kHz)
UART1 and UART2 (with IR) (Logical Devices 5 and 6)
380.95
421.05
436.36
480.00
457.71
502.26
480.0
533.3
0 0 1
001
High Frequency
(TXHSC = 1)
reserved
reserved
reserved
400 KHz
reserved
reserved
reserved
reserved
450 KHz
reserved
reserved
480 KHz
reserved
reserved
reserved
reserved
reserved
. . .
DBW2-0 (Bits 7, 6 and 5 of IRRXDC)
DBW2-0 (Bits 7, 6 and 5 of IRRXDC)
363.63
444.44
417.39
505.26
436.36
533.33
457.1
564.7
0 1 0
010
162
347.82
470.58
400.00
533.33
417.39
564.70
436.4
600.0
0 1 1
011
MCPW Bits
MCFR Bits
Encoding
Encoding
TABLE 7-29. Carrier Clock Pulse Width Options
43210
7 6 5
0 0 0
0 0 1
0 1 0
0 1 1
1 0 0
1 0 1
1 1 0
1 1 1
11100
11101
11110
11111
333.33
500.00
384.00
564.70
400.00
600.00
417.4
640.0
1 0 0
100
Low Frequency
Low Frequency
(TXHSC = 0)
(TXHSC = 0)
56.9 KHz
10.6 sec
Reserved
Reserved
Reserved
Reserved
reserved
55 KHz
56 KHz
6 sec
7 sec
9 sec
320.00
533.33
369.23
600.00
384.00
640.00
400.0
685.6
1 0 1
101
High Frequency
High Frequency
(TXHSC = 1)
(TXHSC = 1)
307.69
571.42
355.55
640.00
369.92
685.57
384.0
738.5
1 1 0
reserved
reserved
reserved
reserved
Reserved
Reserved
Reserved
Reserved
Reserved
0.7 sec
0.8 sec
0.9 sec
110