W83L517D Datasheet, PDF (19/138 Pages) Winbond – LPC SUPER I/O

W83L517D
1.4 Serial Port Interface (Conts’)
Version 0.6
SYMBOL PIN
DTRA#
43
(PNPCSV#
)
SINA
44
SOUTA
45
I/O
I/O_8t
IN_t
I/O₈
FUNCTION
UART A Data Terminal Ready. An active low signal informs
the modem or data set that the controller is ready to
communicate.
During power-on reset, this pin is pulled down internally and is
defined as _PNPCSV#, which provides the power-on value for
CR24 bit 0 (PNPCSV#). A 4.7 kΩ is recommended if intends
to pull up. (clear the default value of FDC, UARTs, and PRT)
Serial Input. It is used to receive serial data through the
communication link.
UART A Serial Output. It is used to transmit serial data out to
the communication link.
(PEN48)
IN_t
During power-on reset, this pin is pulled down internally and is
defined as PEN48 and the clock input (Pin 6) should be
48MHz, which provides the power-on value for CRxx bit x
(EN48). A 4.7 kΩ resistor is recommended if intends to pull up
and 24MHz input is slected.
DCDA#
46
RIA#
47
IRRX
48
IRTX
49
IN_t
IN_t
INts
OUT12t
Data Carrier Detect. An active low signal indicates the
modem or data set has detected a data carrier.
Ring Indicator. An active low signal indicates that a ring signal
is being received from the modem or data set.
Alternate Function Input: Infrared Receiver input.
Alternate Function Output: Infrared Transmitter Output.
IRSEL0_ 50
IRRXH
I/O12t
After reset, this pin is Infrared Control Signal 0 , this signal is
output and selecte FIR or SIR mode for IR module . This pin
can be set as IRRXH , the signal is high speed infrared
receiver input
12
Publication Release Date: Apr. 2000
Revision 0.60