w83977atg Winbond Electronics Corp America, w83977atg Datasheet - Page 80

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

7.7.6
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
7.8.1
This register controls ASK-IR, MIR, FIR operations.
Bit 7:
RFLFL/ LST_NU
Reset Value
ADDRESS OFFSET
IR_CFG2
Reset Value
Reset Value
REG.
RFLFH
REG.
Set6 - IR Physical Layer Control Registers
Set5.Reg6, 7 - Receiver Frame Length FIFO (RFLFL/RFLFH) or Lost Frame Number
(LST_NU)
Set6.Reg0 - Infrared Configure Register 2 (IR_CFG2)
0
1
2
3
4
5
6
7
SHMD_N - ASK-IR Modulation Disable
SHMD_N
BIT 7
0
BIT 7
Bit 7
0
0
-
SHMD_N
SHDM_N
REGISTER NAME
BIT 6
0
0
1
BIT 6
Reserved
Reserved
Reserved
Bit 6
HIR_FNU
IR_CFG2
MIR_PW
SIR_PW
0
0
-
SSR
FIR_CRC
BIT 5
BIT 5
Bit 5
1
0
0
-
Infrared Configure Register 2
MIR (1.152M bps or 0.576M bps) Pulse Width
SIR Pulse Width
Sets Select Register
High Speed Infrared Flag Number
- 72 -
MIR_CRC
IRTX modulate 500K Hz Square Wave
BIT 4
Bit 12
BIT 4
Bit 4
0
0
0
W83977ATF/W83977ATG
Modulation Mode
REGISTER DESCRIPTION
BIT 3
Bit 11
BIT 3
Re-rout IRTX
Bit 3
0
0
0
-
INV_CRC
BIT 2
Bit 10
Bit 2
BIT 2
-
-
-
0
0
0
BIT 1
DIS_CRC
Bit 1
Bit 9
0
0
BIT 1
0
BIT 0
Bit 0
Bit 8
BIT 0
0
0
0
-