W83627DHG Datasheet, PDF (25/268 Pages) Winbond – WINBOND LPC I/O

W83627DHG
Serial Port & Infrared Port Interface , continued.
SYMBOL PIN
I/O
DESCRIPTION
Clear To Send. This is the modem-control input. The function of
CTSA#
49
IN_t these pins can be tested by reading bit 4 of the handshake status
register.
GP67
I/OD_12t General-purpose I/O port 6 bit 7.
RIB#
85
IN_t
Ring Indicator. An active-low signal indicates that a ring signal is
being received from the modem or the data set.
GP40*
I/OD_12t General-purpose I/O port 4 bit 0.
DCDB#
84
IN_t
Data Carrier Detection. An active-low signal indicates the modem
or data set has detected a data carrier.
GP41***
I/OD_12t General-purpose I/O port 4 bit 1.
FAN_SET2
Determines the initial FAN speed. Power-on configuration for 2
IN_t
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.
SOUTB
83
UART B Serial Output. This pin is used to transmit serial data out
O₁₂ to the communication link.
IRTX
IR Transmitter output.
General-purpose I/O port 4 bit 2.
GP42*
I/O_12t
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)
SINB
IRRX
Serial Input. This pin is used to receive serial data through the
82
IN_t communication link.
IR Receiver input.
GP43***
I/OD_12t General-purpose I/O port 4 bit 3.
DTRB#
81
O₁₂
UART B Data Terminal Ready. An active-low signal informs the
modem or data set that the controller is ready to communicate.
GP44*
I/OD_12t General-purpose I/O port 4 bit 4.
RTSB#
80
O₁₂
UART B Request To Send. An active-low signal informs the
modem or data set that the controller is ready to send data.
GP45***
I/OD_12t General-purpose I/O port 4 bit 5.
Data Set Ready. An active-low signal indicates the modem or
DSRB#
79
IN_t data set is ready to establish a communication link and transfer
data to the UART.
GP46*
I/OD_12t General-purpose I/O port 4 bit 6.
Clear To Send. This is the modem-control input. The function of
CTSB#
78
IN_t these pins can be tested by reading bit 4 of the handshake status
register.
GP47***
I/OD_12t General-purpose I/O port 4 bit 7.
Note: Regarding the * sign, please see 5.11.8 GPIO-4 for detailed WDTO# / SUSLED multi-function information.
Publication Release Date: Aug, 22, 2007
-13-
Version 1.4