SCH3112I-NE SMSC [SMSC Corporation], SCH3112I-NE Datasheet - Page 114

• Manufacturer Part Number: SCH3112I-NE
• Description: LPC IO with 8042 KBC, Reset Generation, HWM and Multiple Serial Ports
• Manufacturer: SMSC [SMSC Corporation]

6 Option Register
Rev 0.2 (09-28-04)
Bit[2:1]
MUX
DE
For SP5, the port signals are nRTS5, nDTR5, nSCOUT5 and nSCIN5. The nSCOUT5 signal may be
either nRTS5 or nDTR5, selected via an SP5 option bit in a register.
nSCOUT
nSCIN
Figure 8.4 Reduce Pin Serial Port Control Signal Selection
SP5/6 Option Register
=11
=00
=01
Bit 0
=10
MUX
1
0
DATASHEET
LPC IO with 8042 KBC, Reset Generation, HWM and Multiple Serial Ports
98
"0"
"1"
"0"
"0"
1
0
1
0
1
0
1
0
MUX
MUX
MUX
MUX
SMSC SCH311X
nDTR (defa
nRTS
nDSR
nCTS
nRI (defau
nDCD
Datasheet