w83l517g Winbond Electronics Corp America, w83l517g Datasheet - Page 18

• Manufacturer Part Number: w83l517g
• Description: Winbond Lpc I/o For Notebook W83l517d/ W83l517d-f
• Manufacturer: Winbond Electronics Corp America

Serial Port Interface, continued
IRSEL0_ IRRXH
(PNPCSV#)
SYMBOL
(PEN48)
SOUTA
DCDA#
DTRA#
IRRX
SINA
IRTX
RIA#
PIN
43
44
45
46
47
48
49
50
OUT
I/O
I/O
I/O
IN
I/O
IN
IN
IN
IN
12t
ts
8t
t
t
t
t
8
12t
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.
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.
Data Carrier Detect.
modem or data set has detected a data carrier.
Ring Indicator.
signal is being received from the modem or data set.
Alternate Function Input: Infrared Receiver input.(For
W83L517D only)
Alternate Function Output: Infrared Transmitter Output. (For
W83L517D only)
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 . (For W83L517D only)
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An active low signal indicates that a ring
W83L517D/W83L517D-F
An active low signal indicates the
FUNCTION