W83627HF/ F/ HG/ G
CRF1 （Default 0x00）
BIT
DESCRIPTION
7
6
Reserved.
IRLOCSEL. IR I/O pins' location select.
0： Through SINB/SOUTB.
1： Through IRRX/IRTX.
5
4
3
IRMODE2. IR function mode selection bit 2.
IRMODE1. IR function mode selection bit 1.
IRMODE0. IR function mode selection bit 0.
IR MODE
IR FUNCTION
IRTX
IRRX
00X
Disable
tri-state
high
Demodulation into
SINB/IRRX
010*
011*
100
IrDA
Active pulse 1.6 μS
Demodulation into
SINB/IRRX
IrDA
Active pulse 3/16 bit time
Inverting IRTX/SOUTB pin
routed to
SINB/IRRX
ASK-IR
ASK-IR
ASK-IR
ASK-IR
routed to
SINB/IRRX
101
Inverting IRTX/SOUTB & 500 KHZ clock
Inverting IRTX/SOUTB
Demodulation into
SINB/IRRX
110
Demodulation into
SINB/IRRX
111*
Inverting IRTX/SOUTB & 500 KHZ clock
Note： The notation is normal mode in the IR function.
BIT
DESCRIPTION
HDUPLX. IR half/full duplex function select.
2
1
0
0： The IR function is Full Duplex.
1： The IR function is Half Duplex.
TX2INV
0： the SOUTB pin of UART B function or IRTX pin of IR function in normal condition.
1： inverse the SOUTB pin of UART B function or IRTX pin of IR function.
RX2INV.
0： the SINB pin of UART B function or IRRX pin of IR function in normal condition.
1： Inverse the SINB pin of UART B function or IRRX pin of IR function
Publication Release Date: June 09, 2006
- 95 -
Revision 2.27
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