LPC47M140-NC SMSC [SMSC Corporation], LPC47M140-NC Datasheet - Page 167

• Manufacturer Part Number: LPC47M140-NC
• Description: 128 PIN ENGANCED SUPER I/O CONTROLLER WITH AN LPC INTERFACE AND USB HUB
• Manufacturer: SMSC [SMSC Corporation]

Note 1:
SMSC DS – LPC47M14X
IR Option Register
Default = 0x02
on VCC POR,
VTR POR and
HARD RESET
IR
Timeout
Default = 0x03
on VCC POR,
VTR POR and
HARD RESET
The TXD2_MODE bit is a VTR powered bit that is reset on VTR POR only.
Half
NAME
Table 71 – Serial Port 2, Logical Device 5 [Logical Device Number = 0x05]
Duplex
REG INDEX
0xF1 R/W
0xF2
Bit[0] Receive Polarity
= 0
= 1
Bit[1] Transmit Polarity
= 0
= 1
Bit[2] Duplex Select
= 0
= 1
Bits[5:3] IR Mode
= 000
= 001
= 010
= 011
= 1xx
Bit[6] IR Location Mux
= 0
= 1
Bit[7] Reserved, write 0.
Bits [7:0]
These bits set the half duplex time-out for the IR port.
This value is 0 to 10msec in 100usec increments.
0= blank during transmit/receive
1= blank during transmit/receive + 100usec
Active High (Default)
Active Low
Full Duplex (Default)
Standard COM Functionality (Default)
IrDA
ASK-IR
Reserved
Reserved
Use Serial port TXD2 and RXD2 (Default)
Use alternate IRRX2 (pin 61) and IRTX2 (pin
62).
Active High
Active Low (Default)
Half Duplex
Page 167
DEFINITION
STATE
C
Rev. 03/19/2001