F81866A
Data Carrier Detect. An active low signal indicates the
120
DCD1#
INst,5v
3VCC
modem or data set has detected a data carrier.
Ring Indicator. An active low signal indicates that a
121
122
RI1#
INst,5v
INst,5v
O8
I_VSB3V ring signal is being received from the modem or data
set. Support wake up function.
Clear To Send is the modem control input.
CTS1#
DTR1#
3VCC
UART Data Terminal Ready. An active low signal
informs the modem or data set that controller is ready
to communicate.
3VCC
Power on strapping pin:
123
1(Default): (Internal pull high 47kΩ )
Power on fan speed default duty is 40%.(PWM)
0: (External pull down)
FAN_40_100
INt,u47, 5v
3VCC
Power on fan speed default duty is 100%.(PWM)
UART Request To Send. An active low signal informs
the modem or data set that the controller is ready to
send data.
RTS1#
O8
3VCC
3VCC
3VCC
124
125
Power on strapping:
1(internal pull high 47kΩ ,Default) Configuration
register:4E/4F
Config4E_2E
INt,u47, 5v
0 Configuration register:2E/2F
Data Set Ready. An active low signal indicates the
DSR1#
SOUT1
INst,5v
modem or data set is ready to establish
communication link and transfer data to the UART.
a
UART Serial Output. Used to transmit serial data out
to the communication link.
O8
Power on strapping pin:
1: (internal pull high 47kΩ, default)
Power on I2C slave address is 0x5C.
0: (external pull down)
126
127
3VCC
3VCC
I2C_ADDR
SIN1
INt,u47, 5v
Power on I2C slave address is 0x5A.
UART Serial Input. Used to receive serial data
through the communication link.
INst,5v
27
Jan, 2012
V0. 12P
FINTEK [ FEATURE INTEGRATION TECHNOLOGY INC. ]
