LPC47M192-NW Standard Microsystems (SMSC), LPC47M192-NW Datasheet - Page 181

• Manufacturer Part Number: LPC47M192-NW
• Manufacturer: Standard Microsystems (SMSC)

Specifications of LPC47M192-NW

• Lead Free Status / RoHS Status: Compliant

Note 1 : The TXD2_MODE bit is a VTR powered bit that is reset on VTR POR only.
SMSC DS – LPC47M192
Serial Port 2
Mode Register
Default = 0x00
on VCC POR,
VTR POR and
PCI RESET
Bit[5] reset on
VTR POR only
IR Option Register
Default = 0x02
on VCC POR,
VTR POR and
PCI RESET
IR
Timeout
Default = 0x03
on VCC POR,
VTR POR and
PCI RESET
KRST_GA20
Default = 0x00
on VCC POR,
VTR POR and
PCI RESET
Half
NAME
Table 73 - Serial Port 2, Logical Device 5 [Logical Device Number = 0x05]
NAME
Table 74 - KYBD, Logical Device 7 [Logical Device Number = 0x07]
Duplex
REG INDEX
REG INDEX
0xF0 R/W
0xF1 R/W
0xF0
R/W
0xF2
UART Interrupt Operation Table
DATASHEET
KRESET and GateA20 Select
Bit[7] Polarity Select for P12
Bit[6] M_ISO. Enables/disables isolation of mouse
signals into 8042. Does not affect MDAT signal to
mouse wakeup (PME) logic.
Bit[0] MIDI Mode
= 0 MIDI support disabled (default)
= 1 MIDI support enabled
Bit[1] High Speed
= 0 High Speed disabled(default)
= 1 High Speed enabled
Bit[4:2] Reserved, set to zero
Bit[5] TXD2_MODE (Note 1)
=0 The inactive state of the TXD2 pin is low.
=1 The inactive state of the TXD2 pin is tristate.
Bits[7:6] 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
= 001
= 010
= 011
= 1xx
Bit[6] IR Location Mux
= 0 Use Serial port TXD2 and RXD2 (Default)
= 1 Use alternate IRRX2 (pin 61) and IRTX2 (pin 62).
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
= 0 P12 active low (default)
= 1 P12 active high
Page 181
Standard COM Functionality (Default)
IrDA
ASK-IR
Reserved
Reserved
DEFINITION
DEFINITION
Rev. 03/30/05