F81865F View Datasheet(PDF) - Feature Integration Technology Inc.
Part Name
Description
Manufacturer
F81865F Datasheet PDF : 128 Pages
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6.2 LPC Interface
Pin No.
Pin Name
23
LRESET#
24
LDRQ#
25
SERIRQ
26
LFRAME#
Type
INst,5v
O12
I/O24t
INst
27-30
32
33
LAD[0:3]
PCICLK
CLKIN
I/O24t
INst
INst
F81865
PWR
VCC
VCC
VCC
VCC
VCC
VCC
VCC
Description
Reset signal. It can connect to PCIRST# signal on the
host.
Encoded DMA Request signal.
Serial IRQ input/Output.
Indicates start of a new cycle or termination of a
broken cycle.
These signal lines communicate address, control, and
data information over the LPC bus between a host and
a peripheral.
33MHz PCI clock input.
System clock input. According to the input frequency
24/48MHz.
6.3 FDC
Pin No.
Pin Name
DENSEL#
9
GPIO50
RTS6_2#
MOA#
10
GPIO51
SIN6_2
IRRX_2
DRVA#
GPIO52
11
SOUT6_2
IRTX_2
WDATA#
12
GPIO53
DCD6#
Type
OD14
I/OOD14
O14
OD14
I/OOD14
INt,5v
INt,5v
OD14
I/OOD14
O14
O14
OD14
I/OOD14
INt,5v
PWR
VCC
VCC
VCC
VCC
Description
Drive Density Select.
Set to 1 – High data rate.(500Kbps, 1Mbps)
Set to 0 – Low data rate. (250Kbps, 300Kbps)
General Purpose IO.
UART Request To Send. An active low signal informs
the modem or data set that the controller is ready to
send data.
Motor A On. When set to 0, this pin enables disk drive
0. This is an open drain output.
General Purpose IO.
UART Serial Input. Used to receive serial data
through the communication link.
Infrared Receiver input.
Drive Select A. When set to 0, this pin enables disk
drive A. This is an open drain output.
General Purpose IO.
UART Serial Output. Used to transmit serial data out
to the communication link.
Infrared Transmitter Output.
Write data. This logic low open drain writes
pre-compensation serial data to the selected FDD. An
open drain output.
General Purpose IO.
Data Carrier Detect. An active low signal indicates
the modem or data set has detected a data carrier.
11
May, 2010
V0.28P
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