F71869A
The function is selected by register setting.
SEGG for 7-segment display. (Select by pin 5 power on
strapping)
SEGG
O18
Default General Purpose IO.
GPIO20
I/OOD8st,5v
Ring Indicator. An active low signal indicates that a ring
signal is being received from the modem or data set.
The function is selected by register setting.
SEGF for 7-segment display. (Select by pin 5 power on
strapping)
RI2#
INst,5v
127
128
1
I_VSB3V
SEGF
GPIO21
CTS2#
O18
I/OOD8st,5v
INst,5v
Default General Purpose IO.
Clear To Send is the modem control input.
The function is selected by register setting.
SEGA for 7-segment display. (Select by pin 5 power on
strapping)
3VCC
SEGA
O18
GPIO22
GPIO23
I/OOD8st,5v
I/OOD8st,5v
Default General Purpose IO.
Default General Purpose IO.
UART 2 Data Terminal Ready. An active low signal informs
the modem or data set that controller is ready to
communicate. The function is selected by register setting.
SEGD for 7-segment display. (Select by pin 5 power on
strapping)
DTR2#
O8t5v,u47k
3VCC
SEGD
O18
Default General Purpose IO.
GPIO24
I/OOD8st,5v
UART 2 Request To Send. An active low signal informs the
modem or data set that the controller is ready to send data.
The function is selected by register setting.
SEGC for 7-segment display. (Select by pin 5 power on
strapping)
RTS2#
O8t5v,u47k
2
3
3VCC
3VCC
SEGC
O18
GPIO25
I/OOD8st,5v
Default General Purpose IO.
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. The function is selected by
register setting.
DSR2#
INst,5v
L# for 7-segment display. (Select by pin 5 power on
strapping)
L#
O30
GPIO26
I/OOD8st,5v
Default General Purpose IO.
UART 2 Serial Output. Used to transmit serial data out to
the communication link. The function is selected by register
setting.
SOUT2
SEGB
O8t,5v,u47k
5
6
3VCC
3VCC
SEGB for 7-segment display. (Select by pin 5 power on
strapping)
O18
Strap for 80 Port. Default internal Pull High for 80 Port
Enable.
STRAP_DPORT
GPIO27
INt,5v
Default General Purpose IO.
I/OOD8st,5v
Serial Input. Used to receive serial data through the
communication link. The function is selected by register
SIN2
INst,5v
15
Oct., 2011
V0.19P
FINTEK [ FEATURE INTEGRATION TECHNOLOGY INC. ]
