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FDC87W22 View Datasheet(PDF) - SMSC -> Microchip

Part Name
Description
MFG CO.
FDC87W22
SMSC
SMSC -> Microchip SMSC
'FDC87W22' PDF : 140 Pages View PDF
SYMBOL
PIN
I/O
FUNCTION
PD1
10
I/O24t PRINTER MODE: PD1
Parallel port data bus bit 1. Refer to the description of the
parallel port for the definition of this pin in ECP and EPP
INt
mode.
EXTENSION FDD MODE: nTRAK02
I/O24t
This pin is for Extension FDD B; the function of this pin is the
same as that of the nTRAK0 pin. This pin is pulled high
internally.
EXTENSION ADAPTER MODE: XD1
INt
This pin is system data bus D1 for the Extension Adapter.
EXTENSION. 2FDD MODE: nTRAK02
I/O24t
This pin is for Extension FDD A and B; this function of this pin
is the same as nTRAK0 pin. This pin is pulled high internally.
JOYSTICK MODE: JP1
This pin is the paddle 1 input for joystick.
PD2
11
I/O24t PRINTER MODE: PD2
Parallel port data bus bit 2. Refer to the description of the
parallel port for the definition of this pin in ECP and EPP
INt
mode.
EXTENSION FDD MODE: nWP2
I/O24t
This pin is for Extension FDD B; the function of this pin is the
same as that of the nWP pin. This pin is pulled high
internally.
EXTENSION ADAPTER MODE: XD2
INt
This pin is system data bus D2 for the Extension Adapter.
EXTENSION. 2FDD MODE: nWP2
This pin is for Extension FDD A and B; this function of this pin
-
is the same as that of the nWP pin. This pin is pulled high
internally.
JOYSTICK MODE: NC pin
15
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