F81867
An open drain output.
Data Carrier Detect. An active low signal indicates
the modem or data set has detected a data carrier.
DCD6#
INst,5v
GPIO54
I/OOD14st, 5v
General Purpose IO.
Direction of the head step motor. An open drain
output.
DIR#
OD14,5v
Logic 1 = outward motion
13
14
3VCC
3VCC
Logic 0 = inward motion
Ring Indicator. An active low signal indicates that a
ring signal is being received from the modem or data
set.
RI6#
INst,5v
GPIO55
STEP#
I/OOD14st, 5v
OD14,5v
General Purpose IO.
Step output pulses. This active low open drain output
produces a pulse to move the head to another track.
Clear To Send is the modem control input.
CTS6#
INst,5v
GPIO56
I/OOD14st, 5v
General Purpose IO.
Head select. This open drain output determines
which disk drive head is active.
Logic 1 = side 0
HDSEL#
DTR6#
OD14,5v
15
16
17
3VCC
3VCC
3VCC
Logic 0 = side 1
UART Data Terminal Ready. An active low signal
informs the modem or data set that controller is ready
to communicate.
O14
GPIO57
I/OOD14st, 5v
OD14,5v
General Purpose IO.
WGATE#
Write enable. An open drain output.
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.
General Purpose IO.
DSR6#
INst,5v
GPIO60
RDATA#
I/OOD12st, 5v
INst,5v
The read data input signal from the FDD.
Data Carrier Detect. An active low signal indicates
the modem or data set has detected a data carrier.
PWM0 Output where its frequency range is
183Hz~46.875KHz. It can support various
applications such as manual fan control, and
backlight brightness control.
DCD5#
INst,5v
PWM 0
OOD14st, 5v
GPIO61
TRK0#
I/OOD12st, 5v
General Purpose IO.
Track 0. This Schmitt-triggered input from the disk
drive is active low when the head is positioned over
the outermost track.
INst,5v
Ring Indicator. An active low signal indicates that a
ring signal is being received from the modem or data
set.
18
3VCC
RI5#
INst,5v
PWM1 Output where its frequency range is
183Hz~46.875KHz. It can support various
applications such as manual fan control, and
PWM 1
OOD12
19
Dec, 2011
V0.12P
FINTEK [ FEATURE INTEGRATION TECHNOLOGY INC. ]
