F71869A
FANCTL3 (Suppot scan code setting).
Diskette change. This signal is active low at power on and
whenever the diskette is removed.
DSKCHG#
INst,5v
FDC function is selected by register setting.
4.4 UART and SIR
Pin No.
Pin Name
Type
PWR
Description
Default General Purpose IO.
GPIO42
I/OOD12t,5v
27
3VCC
Infrared Transmitter Output. The function is selected by
register setting.
IRTX
GPIO43
IRRX
O12
I/OOD12t,5v
INst,5v
Default General Purpose IO.
28
3VCC
Infrared Receiver input. The function is selected by register
setting.
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.
118
DCD1#
INst,5v
3VCC
119
120
RI1#
INst,5v
INst,5v
I_VSB3V
CTS1#
3VCC Clear To Send is the modem control input.
UART 1 Data Terminal Ready. An active low signal informs
the modem or data set that controller is ready to
communicate. Internal 47k ohms pulled high and disable
after power on strapping.
DTR1#
O8t5v,u47k
121
3VCC
Power on strapping pin:
1(Default): (Internal pull high)
FAN40_100
RTS1#
INt,5v
Power on fan speed default duty is 40%.(PWM)
0: (External pull down)
Power on fan speed default duty is 100%.(PWM)
UART 1 Request To Send. An active low signal informs the
O8t5v-u47k
modem or data set that the controller is ready to send data.
Power on Strapping pin for over voltage protection function.
1: Default is alarm mode (disabled). Voltage protection
function is enabled via setting the related register.
122
123
3VCC
STRAP_PROT
ECT
INt,5v
0: Force mode which is always enabled after power on.
Data Set Ready. An active low signal indicates the modem
DSR1#
SOUT1
INst,5v
3VCC or data set is ready to establish a communication link and
transfer data to the UART.
UART 1 Serial Output. Used to transmit serial data out to
the communication link. Internal 47k ohms pulled high and
disable after power on strapping.
O8t5v,u47k
124
3VCC
Power on strapping:
STRAP4E_2E
INt,5v
1(Default): Configuration register 4E
0: Configuration register 2E
Serial Input. Used to receive serial data through the
125
126
SIN1
INst,5v
INst,5v
3VCC
communication link.
Data Carrier Detect. An active low signal indicates the
3VCC
DCD2#
modem or data set has detected a data carrier.
14
Oct., 2011
V0.19P
FINTEK [ FEATURE INTEGRATION TECHNOLOGY INC. ]
