LPC47B272-MS SMSC, LPC47B272-MS Datasheet - Page 164

• Manufacturer Part Number: LPC47B272-MS
• Description: IC CTRLR SUPER I/O LPC 100-QFP
• Manufacturer: SMSC

Specifications of LPC47B272-MS

• Controller Type: I/O Controller
• Interface: LPC
• Voltage - Supply: 3.3V
• Current - Supply: 15mA
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 100-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 638-1019

UART Interrupt Operation
Note:
SMSC LPC47B27x
Serial Port 2
Mode Register
Default = 0x00
on VCC POR,
VTR POR and
HARD RESET
IR Option Register
Default = 0x02
on VCC POR,
VTR POR and
HARD RESET
IR Half Duplex
Timeout
Default = 0x03
on VCC POR,
VTR POR and
HARD RESET
KRST_GA20
Default = 0x00
on VCC POR,
VTR POR and
HARD RESET
Bits[6:5] reset on
VTR POR only
NAME
NAME
Serial Port 2 (CIrCC) is reset by nPCI_RESET.
Table 71 - Serial Port 2, Logical Device 5 [Logical Device Number = 0x05]
Table 72 - KYBD, Logical Device 7 [Logical Device Number = 0x07]
REG INDEX
REG INDEX
0xF0
0xF0 R/W
0xF1 R/W
R/W
0xF2
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.
1=block mouse clock and data signals into 8042
0= do not block mouse clock and data signals into 8042
Bit[5] K_ISO. Enables/disables isolation of keyboard
signals into 8042. Does not affect KDAT signal to
keyboard wakeup (PME) logic.
1=block keyboard clock and data signals into 8042
0= do not block keyboard clock and data signals into
8042
Bit[4] MLATCH
(default)
= 0 MINT is the 8042 MINT ANDed with Latched MINT
= 0 P12 active low (default)
= 1 P12 active high
Bit[0] MIDI Mode
= 0
= 1
Bit[1] High Speed
= 0
= 1
Bit[7:2] Reserved, set to zero
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
. . .
DATASHEET
MIDI support disabled (default)
MIDI support enabled
High Speed disabled(default)
High Speed enabled
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
- 164 -
DEFINITION
DEFINITION
Rev. 04-17-07
STATE
STATE
C
C