W83L517D_05 Datasheet, PDF (79/133 Pages) Winbond – LPC I/O for Notebook

W83L517D/W83L517D-F
8.8 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
IR_ID1
IR ID Register 1
6
IR_ID2
IR ID Register 2
7
HIR_SL
High Speed infrared Select Register
8.8.1 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 Value
0
0
1
0
0
0
0
BIT 0
-
0
Bit 7:
Bit 6:
Bit 5:
Bit 4:
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
FIR_CRC - FIR (4M bps) CRC Type
FIR_CRC
CRC Type
0
16-bit CRC
1
32-bit CRC
Note that the 16/32-bit CRC are defined in IrDA 1.1 physical layer.
MIR_CRC - MIR (1.152M/0.576M bps) CRC Type
MIR_CRC
CRC Type
0
16-bit CRC
1
32-bit CRC
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Publication Release Date: May 23, 2005
Revision 1.0