W83977F-A Datasheet, PDF (78/182 Pages) Winbond – WINBOND I/O

W83977F-A/ W83977G-A/ W83977AF-A/ W83977AG-A
Receiver Frame Length FIFO (RFLFL/RFLFH):
These are combined to be a 13-bit register. Reading these registers returns received byte count for
the frame. When read, the register of RFLFH will pop-up another frame status and frame length if
FSFDR=1 (Set5.Reg4.Bit7).
Lost Frame Number (LST_NU):
When LST_FR=1 (Set5.Reg4.Bit6), Reg6 stands for LST_NU which is a 8-bit register holding the
number of frames lost in succession.
7.8 Set6 - IR Physical Layer Control Registers
ADDRESS OFFSET
REGISTER NAME
REGISTER DESCRIPTION
0
IR_CFG2
Infrared Configure Register 2
1
MIR_PW
MIR (1.152M bps or 0.576M bps) Pulse Width
2
SIR_PW
SIR Pulse Width
3
SSR
Sets Select Register
4
HIR_FNU
High Speed Infrared Flag Number
5
Reserved
-
6
Reserved
-
7
Reserved
-
7.8.1 Set6.Reg0 - Infrared Configure Register 2 (IR_CFG2)
This register controls ASK-IR, MIR, FIR operations.
REG.
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
IR_CFG2 SHMD_N SHDM_N FIR_CRC MIR_CRC
-
INV_CRC DIS_CRC
Reset
0
0
1
0
0
0
0
Value
BIT 0
-
0
Bit 7:
Bit 6:
SHMD_N - ASK-IR Modulation Disable
SHMD_N
Modulation Mode
0
IRTX modulate 500K Hz Square Wave
1
Re-rout IRTX
SHDM_N - ASK-IR Demodulation Disable
SHDM_N
Demodulation Mode
0
Demodulation 500K Hz
1
Re-rout IRRX
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