w83977atg Winbond Electronics Corp America, w83977atg Datasheet - Page 87

• Manufacturer Part Number: w83977atg
• Description: W83877tf Plus Kbc, Gp I/o, Wake-up, Fir, Cir, Pb-free
• Manufacturer: Winbond Electronics Corp America

Bit 6:
Bit 5:
Bit 4:
Bit 3:
Bit 2:
Bit 1~0:
7.9.4
Reading this register returns F4H. Select Register Set by writing a set number to this register.
Default Value
REG.
SSR
Set7.Reg3 - Sets Select Register (SSR)
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.
TX_MM1~0 - Transmitter Modulation Mode 1~0
TX_MM1~0
BIT 7
Bit 7
1
00
01
10
11
TX_FCS
RX_DM
RXCFS
BIT 6
Bit 6
0
1
0
1
0
1
1
BIT 5
Bit 5
8 pulses for logic 0 and no pulse for logic 1.
6 pulses for logic 0 and no pulse for logic 1
1
Continuously send pulse for logic 0
- 79 -
BIT 4
Bit 4
TX Modulation Mode
1
Disable internal decoder
Enable internal decoder
W83977ATF/W83977ATG
Demodulation Mode
Selected Frequency
Selected Frequency
Reserved.
400K ~ 480K Hz
400K ~ 480K Hz
30K ~ 56K Hz
30K ~ 56K Hz
BIT 3
Bit 3
0
Publication Release Date: May 2006
BIT 2
Bit 2
1
BIT 1
Bit 1
0
Revision 0.6
BIT 0
Bit 0
0