w83977atf Winbond Electronics Corp America, w83977atf Datasheet - Page 99

• Manufacturer Part Number: w83977atf
• Description: Winbond I/o
• Manufacturer: Winbond Electronics Corp America

4.9.3 Set7.Reg2 - Remote Infrared Config Register (RIR_CFG)
Bit 7:
Bit 6:
Bit 5:
Bit 4:
Bit 3:
Bit 2:
Default Value
RIR_CFG
Reg.
P_PNB: Programming Pulse Number Coding.
Write a 1 to select programming pulse number coding. The code format is defined as
follows.
If the bit value is set to 0, the high pulse will be transmitted/received. If the bit value is
set to 1, then no energy will be transmitted/received.
SMP_M - Sampling Mode.
To select receiver sampling mode.
When set to 0 then uses T-period sampling, that the T-period is programmed IR baud
rate.
When set to 1, programmed baud rate will be used to do oversampling.
RXCFS - Receiver Carry Frequency Select
Reserved, write 0.
TX_CFS - Transmitter Carry Frequency Select.
Select low speed or high speed transmitter carry frequency.
RX_DM - Receiver Demodulation Mode.
P_PNB
Bit 7
0
SMP_M
TX_FCS
RX_DM
RXCFS
Bit 6
0
0
1
0
1
0
1
B7 B6 B5 B4
RXCFS
Bit 5
Bit value
0
(Number of bits) - 1
Bit 4
0
- 80 -
-
B3
Disable internal decoder
Enable internal decoder
Demodulation Mode
Selected Frequency
Selected Frequency
B2 B1 B0
400K ~ 480K Hz
TX_CFS
400K ~ 480K Hz
30K ~ 56K Hz
30K ~ 56K Hz
Bit 3
0
Publication Release Date:April 1998
RX_DM
Bit 2
0
W83977ATF
TX_MM1 TX_MM0
PRELIMINARY
Bit 1
0
Revision 0.52
Bit 0
0