w83977atf Winbond Electronics Corp America, w83977atf Datasheet - Page 100
w83977atf
Manufacturer Part Number
w83977atf
Description
Winbond I/o
Manufacturer
Winbond Electronics Corp America
Datasheet
1.W83977ATF.pdf
(207 pages)
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Bit 1~0:
Reading this register returns F4H. Select Register Set by writing a set number to this register.
4.9.5 Set7.Reg4 - Infrared Module (Front End) Select 1 (IRM_SL1)
Bit 7:
Bit 6~4:
Bit 3:
Bit 2~0:
4.9.4 Set7.Reg3 - Sets Select Register (SSR)
Default Value
Default Value
IRM_SL1
Reg.
Reg.
SSR
TX_MM1~0 - Transmitter Modulation Mode 1~0
IR_MSP - IR Mode Select Pulse
When set to 1, the transmitter (IRTX) will send a 64 s pulse to setup a special IR front-
end operational mode. When IR front-end module uses mode select pin (MD) and
transmitter IR pulse (IRTX) to switch between high speed IR (such as FIR or MIR) and
low speed IR (SIR or ASK-IR), this bit should be used.
SIR_SL2~0 - SIR (Serial IR) mode select.
These bits are used to program the operational mode of the SIR front-end module.
These values of SIR_SL2~0 will be automatically loaded to pins of IR_SL2~0,
respectively, when (1) AM_FMT=1 (Automatic Format, in Set7.Reg7.Bit7); (2) the mode
of Advanced IR is set to SIR (AD_MD2~0, in Set0.Reg4.Bit7~0).
Reserved, write 0.
AIR_SL2~0 - ASK-IR Mode Select.
These bits setup the operational mode of ASK-IR front-end module when AM_FMT=1
and AD_MD2~0 are configured to ASK-IR mode. These values will be automatically
loaded to IR_SL2~0, respectively.
TX_MM1~0
IR_MSP SIR_SL2 SIR_SL1 SIR_SL0
Bit 7
Bit 7
Bit 7
1
0
00
01
10
11
Bit 6
Bit 6
Bit 6
1
0
Bit 5
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
0
Continuously send pulse for logic 0
Bit 4
Bit 4
Bit 4
- 81 -
TX Modulation Mode
1
0
Reserved.
Bit 3
Bit 3
Bit 3
0
0
-
Publication Release Date:April 1998
AIR_SL2 AIR_SL1 AIR_SL0
Bit 2
Bit 2
Bit 2
1
0
W83977ATF
PRELIMINARY
Bit 1
Bit 1
Bit 1
0
0
Revision 0.52
Bit 0
Bit 0
Bit 0
0
0
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