FDC37B78X SMSC Corporation, FDC37B78X Datasheet - Page 192

• Manufacturer Part Number: FDC37B78X
• Description: Enhanced Super I/O Controller with ACPI Support/ Real Time Clock and Consumer IR
• Manufacturer: SMSC Corporation

Serial Port 2, Logical Device 5
Serial Port 2
Mode Register
Default = 0x00
on Vcc POR or
Reset_Drv
IR Option Register
Default = 0x02
on Vcc POR or
Reset_Drv
IR Half Duplex
Timeout
Default = 0x03
on Vcc POR or
Reset_Drv
TABLE 80 - SERIAL PORT 2, LOGICAL DEVICE 5 [LOGICAL DEVICE NUMBER = 0X05]
NAME
REG INDEX
0xF0 R/W
0xF1 R/W
(EN 1)
0xF2
Bit[0] MIDI Mode
= 0MIDI support disabled (default)
= 1MIDI support enabled
Bit[1] High Speed
= 0High Speed disabled(default)
= 1High Speed enabled
Bit[7:2] Reserved, set to zero
Bit[0] Receive Polarity
= 0 Active High (Default)
= 1 Active Low
Bit[1] Transmit Polarity
= 0 Active High
= 1 Active Low (Default)
Bit[2] Duplex Select
= 0 Full Duplex (Default)
= 1 Half Duplex
Bits[5:3] IR Mode
= 000 Standard (Default)
= 001 IrDA
= 010 ASK-IR
= 011 Reserved
= 1xx Reserved
Bit[6] IR Location Mux
= 0 Use Serial port TXD2 and RXD2 (Default)
= 1Use alternate IRRX2 (pin 81) and IRTX2 (pin 82)
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
. . .
192
DEFINITION
STATE
C
C