F71872
121
122
DTR1#/ KBC_EN
I/O8t-u47,5V VCC
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.
Power on strapping : 1 (Default) KBC Enable
0 KBC Disable
UART 1 Request To Send. An active low signal informs the
modem or data set that the controller is ready to send data.
Internal 47k ohms pulled high and disable after power on
strapping.
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.
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.
RTS1#
DSR1#
I/O8t-u47,5V VCC
123
124
INt5V
VCC
SOUT1/
Config4E_2E
I/O8t-u47,5V VCC
Power on strapping : 1 (Default) Configuration register:4E
0 Configuration register:2E
125
126
127
SIN1
INt5V
INt5V
INt5V
INt5V
VCC
VCC
VCC
VCC
Serial Input. Used to receive serial data through the
communication link.
DCD2#
RI2#
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.
Clear To Send is the modem control input.
UART 2 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.
128
1
CTS2#
DTR2# / RST_DRV I/O8t-u47,5V VCC
Power on strapping : 1 (Default) : pin31/33/34/48/84 OD
0 Drive
UART 2 Request To Send. An active low signal informs the
modem or data set that the controller is ready to send data.
Internal 47k ohms pulled high and disable after power on
strapping.
2
RTS2#/PWM_DC
I/O8t-u47,5V VCC
Power on strapping : 1 (Default) PWM Mode
0 Drive
Linear Mode
3
5
6
DSR2#
SOUT2
SIN2
INt5V
VCC
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.
UART 2 Serial Output. Used to transmit serial data out to
the communication link. Internal 47k ohms pulled high and
disable after power on strapping.
I/O8t-u47,5V VCC
INt5V
VCC
Serial Input. Used to receive serial data through the
communication link.
5.5 KBC I/F
Pin No.
Pin Name
Type
PWR
Description
45
KBRST#
OD16-u10,5V VCC
Keyboard reset. This pin is high after system reset. Internal
9
July, 2007
V0.28P
FINTEK [ FEATURE INTEGRATION TECHNOLOGY INC. ]
