SCH3112I-NE SMSC [SMSC Corporation], SCH3112I-NE Datasheet - Page 113

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

LPC IO with 8042 KBC, Reset Generation, HWM and Multiple Serial Ports
Datasheet
SMSC SCH311X
8.4
Rx data
nRTS /
Tx data
nDTR
More detail on the programming of the autodirection control can be found in
Register," on page
for Serial Port 3 and 4. SP5 is the option register for Serial Port 5. SP6 is the option register for Serial
Port 6.
The SCH3116 contains two, 4 pin serial ports (5/6), which will have multiplexed control signals. For
each 4 pin port, there is a transmit, receive, input control and output control. The selection of the input
and output control is done via a bit in the SP5/6 option register.
programming these bits selects the corresponding control signals.
Reduced Pin Serial Ports (SCH3116 Only)
Master Device
Figure 8.3 Half Duplex Operation with Direction Control
Transmit
Receive
293. SP12 is the option register for Serial Port 1 and 2. SP34 is the option register
DATASHEET
97
Client Device
Receive
Transmit
Figure 8.4
Chapter 26, "Runtime
illustrates the how
Rx data
Tx data
Rev 0.2 (09-28-04)
nCTS /
nDCD