W83637HF Datasheet, PDF (117/149 Pages) Winbond – LPC I/O

W83637HF
CRF0 (Default 0x00)
Bit 7 - 4 : Reserved.
Bit 3 : RXW4C
= 0 No reception delay when SIR is changed from TX mode to RX mode.
= 1 Reception delays 4 characters-time (40 bit-time) when SIR is changed from TX
mode to RX mode.
Bit 2 : TXW4C
= 0 No transmission delay when SIR is changed from RX mode to TX mode.
= 1 Transmission delays 4 characters-time (40 bit-time) when SIR is changed from
RX mode to TX mode.
Bit 1 - 0 : SUBCLKB1, SUBCLKB0
= 00 UART B clock source is 1.8462 MHz (24MHz/13)
= 01 UART B clock source is 2 MHz (24MHz/12)
= 10 UART B clock source is 24 MHz (24MHz/1)
= 11 UART B clock source is 14.769 MHz (24 MHz/1.625)
CRF1 (Default 0x00)
Bit 7 : Reserved.
Bit 6 : IRLOCSEL. IR I/O pins' location select.
= 0 Through SINB/SOUTB.
= 1 Through IRRX/IRTX.
Bit 5 : IRMODE2. IR function mode selection bit 2.
Bit 4 : IRMODE1. IR function mode selection bit 1.
Bit 3 : IRMODE0. IR function mode selection bit 0.
IR MODE IR FUNCTION
00X
Disable
tri-state
IRTX
010*
IrDA
Active pulse 1.6 µS
011*
IrDA
Active pulse 3/16 bit time
100
ASK-IR
101
ASK-IR
Inverting IRTX/SOUTB pin
Inverting IRTX/SOUTB & 500 KHZ
clock
110
ASK-IR
Inverting IRTX/SOUTB
111*
ASK-IR
Inverting IRTX/SOUTB & 500 KHZ
clock
Note: The notation is normal mode in the IR function.
IRRX
High
Demodulation into
SINB/IRRX
Demodulation into
SINB/IRRX
routed to SINB/IRRX
routed to SINB/IRRX
Demodulation into
SINB/IRRX
Demodulation into
SINB/IRRX
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Publication Release Date: June 25, 2003
Revision 1.3