W83977AF Information Storage Devices, Inc, W83977AF Datasheet - Page 86

• Manufacturer Part Number: W83977AF
• Description: W83877TF Plus Kbc, Cir, RTC
• Manufacturer: Information Storage Devices, Inc

4.9.2 Set7.Reg1 - Remote Infrared Transmitter Control (RIR_TXC)
This Register defines the transmitter frequency and pulse width of remote IR.
Bit 7~5:
Note that those unassigned combinations are reserved.
Bit 4~0:
Table: Low frequency selected.
Note that those unassigned combinations are reserved.
Table: High frequency selected.
Note that those unassigned combinations are reserved.
4.9.3 Set7.Reg2 - Remote Infrared Config Register (RIR_CFG)
Default Value
Default Value
RIR_CFG
RIR_TXC
Reg.
Reg.
TX_FSL4~0
TX_FSL4~0
TX_PW2~0
00011
00100
11101
00011
01000
01011
TX_PW2~0 - Transmitter Pulse Width 2~ 0.
Select the transmission pulse width.
TX_FSL4~0 - Transmitter Frequency Select 4~0.
Select the transmission frequency.
...
TX_PW2 TX_PW1 TX_PW0 TX_FSL4 TX_FSL3 TX_FSL2 TX_FSL1 TX_FSL0
010
011
100
101
P_PNB
Bit 7
Bit 7
0
0
SMP_M
Bit 6
Bit 6
1
0
High Frequency
Low Frequency
RXCFS
Bit 5
Bit 5
400K Hz
450K Hz
480K Hz
1
Low Frequency
0
31K HZ
30K Hz
56K Hz
...
10.6
- 74 -
6
7
9
Bit 4
Bit 4
s
s
s
0
0
-
s
TX_CFS
W83977F/ W83977AF
Bit 3
Bit 3
1
0
Publication Release Date: March 1998
RX_DM
High Frequency
Bit 2
Bit 2
0
0
0.7
0.8
0.9
1.0
PRELIMINARY
TX_MM1 TX_MM0
s
s
s
s
Bit 1
Bit 1
0
0
Revision 0.58
Bit 0
Bit 0
1
0