FDC37B77X SMSC Corporation, FDC37B77X Datasheet - Page 151

• Manufacturer Part Number: FDC37B77X
• Description: ENHANCED SUPER I/O CONTROLLER WITH WAKE UP FEATURES
• Manufacturer: SMSC Corporation

Note:
IR Option Register
Default = 0x02
on Vcc POR or
Reset_Drv
IR Half Duplex
Timeout
Default = 0x03
on Vcc POR or
Reset_Drv
NAME
Serial Port 2 (CIrCC) is reset by RESET_DRV.
Table 62 - Serial Port 2, Logical Device 5 [Logical Device Number = 0x05]
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.
0= blank during transmit/receive
1= blank during transmit/receive + 100usec
. . .
This value is 0 to 10msec in 100usec increments.
Active High (Default)
Active Low
Full Duplex (Default)
Standard (Default)
IrDA
ASK-IR
Reserved
Reserved
Use Serial port TX2 and RX2 (Default)
Use alternate IRRX (pin 61) and IRTX (pin
62)
Active High
Active Low (Default)
Half Duplex
151
DEFINITION
STATE
C