LPC47S457-NC SMSC [SMSC Corporation], LPC47S457-NC Datasheet - Page 212

• Manufacturer Part Number: LPC47S457-NC
• Description: Advanced I/O with X-Bus Interface
• Manufacturer: SMSC [SMSC Corporation]

SMSC LPC47S45x
IR Option Register
Default = 0x02
On VCC POR,
VTR POR and
PCI RESET
IR Half Duplex Timeout
Default = 0x03
on VCC POR, VTR
POR and PCI RESET
Activate
Default = 0x00
on VCC POR, VTR
POR, PCI RESET, and
Soft Reset
RTC/CMOS
Primary Base Address
(High Byte)
Default = 0x00
on VCC POR, VTR
POR, PCI RESET, and
Soft Reset
RTC/CMOS
Primary Base Address
(Low Byte)
Default = 0x70
on
RESET, and Soft Reset
Default = 0x00
on VTR_POR
VCC
NAME
NAME
POR,
Bank
Bank
Table 90 − Serial Port 2, Logical Device 5 [Logical Device Number = 0x05]
PCI
0
0
Table 91 − RTC, Logical Device 6 [Logical Device Number = 0x06]
REG INDEX
REG INDEX
(R/W)
(R/W)
0xF1
0xF2
0x30
0x60
0x61
R/W
R/W
R/W
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] Reserved, write 0.
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
Bit [0]
Bit [1]
Bits [7:2] Reserved
Bits [3:0] Address bits A[11:8]
Bits [7:4] “0000”
Bit [0]
Bits [7:1] Address bits A[7:1]
DATASHEET
Page 212 of 259
Active High (Default)
Active Low
Full Duplex (Default)
Standard COM Functionality (Default)
IrDA
ASK-IR
Reserved
Reserved
Active High
Active Low (Default)
Half Duplex
Activate RTC/CMOS Bank 0
Activate CMOS Bank 1
“0”
DEFINITION
DEFINITION
Rev. 06-01-06
STATE
STATE
C