W83627DHG Nuvoton Technology Corporation of America, W83627DHG Datasheet - Page 25

• Manufacturer Part Number: W83627DHG
• Description: IC I/O CONTROLLER 128-QFP
• Manufacturer: Nuvoton Technology Corporation of America

Specifications of W83627DHG

• Applications: PC's, PDA's
• Interface: LPC
• Voltage - Supply: 3.3V
• Package / Case: 128-XFQFN
• Mounting Type: Surface Mount
• Pin Count: 128
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Serial Port & Infrared Port Interface , continued.
Note: Regarding the * sign, please see 5.11.8 GPIO-4 for detailed WDTO# / SUSLED multi-function information.
FAN_SET2
SYMBOL
GP41***
GP43***
GP45***
GP47***
DCDB#
SOUTB
DTRB#
DSRB#
CTSA#
RTSB#
CTSB#
GP40*
GP42*
GP44*
GP46*
GP67
IRRX
IRTX
SINB
RIB#
PIN
49
85
84
83
82
81
80
79
78
I/OD
I/OD
I/OD
I/OD
I/OD
I/OD
I/OD
I/OD
I/O
O
O
O
I/O
IN
IN
IN
IN
IN
IN
IN
12
12
12
12t
t
t
t
t
t
t
t
12t
12t
12t
12t
12t
12t
12t
12t
Clear To Send. This is the modem-control input. The function of
these pins can be tested by reading bit 4 of the handshake status
register.
General-purpose I/O port 6 bit 7.
Ring Indicator. An active-low signal indicates that a ring signal is
being received from the modem or the data set.
General-purpose I/O port 4 bit 0.
Data Carrier Detection. An active-low signal indicates the modem
or data set has detected a data carrier.
General-purpose I/O port 4 bit 1.
Determines the initial FAN speed. Power-on configuration for 2
fan speeds, 50% or 100%. When VCC is on, this pin needs a
pulled-up or a pulled-down resistor to decide whether the fan
speed is 50% or 100%. Only CPUFANOUT1 is supported.
UART B Serial Output. This pin is used to transmit serial data out
to the communication link.
IR Transmitter output.
General-purpose I/O port 4 bit 2.
Note: This pin changes to input state during internal PWROK from
low to high, then goes back to the previous setting state. (Please
see the AP Note 1 of W83627DHG)
Serial Input. This pin is used to receive serial data through the
communication link.
IR Receiver input.
General-purpose I/O port 4 bit 3.
UART B Data Terminal Ready. An active-low signal informs the
modem or data set that the controller is ready to communicate.
General-purpose I/O port 4 bit 4.
UART B Request To Send. An active-low signal informs the
modem or data set that the controller is ready to send data.
General-purpose I/O port 4 bit 5.
Data Set Ready. An active-low signal indicates the modem or
data set is ready to establish a communication link and transfer
data to the UART.
General-purpose I/O port 4 bit 6.
Clear To Send. This is the modem-control input. The function of
these pins can be tested by reading bit 4 of the handshake status
register.
General-purpose I/O port 4 bit 7.
-13-
DESCRIPTION
Publication Release Date: Aug, 22, 2007
W83627DHG
Version 1.4