FDC87W21 Ver la hoja de datos (PDF) - SMSC -> Microchip
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FDC87W21 Datasheet PDF : 164 Pages
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TABLE OF CONTENTS
FEATURES ....................................................................................................................................... 1
GENERAL DESCRIPTION ................................................................................................................ 2
PIN CONFIGURATION...................................................................................................................... 6
PIN DESCRIPTION........................................................................................................................ 7
HOST INTERFACE .............................................................................................................................. 7
FDC FUNCTIONAL DESCRIPTION................................................................................................. 17
FDC87W21 FDC .......................................................................................................................... 17
REGISTER DESCRIPTIONS........................................................................................................ 31
IDE.................................................................................................................................................. 42
IDE DECODE DESCRIPTION .............................................................................................................. 42
UART PORT ................................................................................................................................... 43
UNIVERSAL ASYNCHRONOUS RECEIVER/TRANSMITTER (UART A, UART B) ............................................ 43
REGISTER ADDRESS ........................................................................................................................ 43
IR PORT........................................................................................................................................ 54
PARALLEL PORT........................................................................................................................... 83
PRINTER INTERFACE LOGIC..................................................................................................... 83
ENHANCED PARALLEL PORT (EPP).......................................................................................... 85
EXTENDED CAPABILITIES PARALLEL (ECP) PORT .................................................................. 89
EXTENSION FDD MODE (EXTFDD) .................................................................................................. 98
EXTENSION 2FDD MODE (EXT2FDD) .............................................................................................. 98
EXTENSION ADAPTER MODE (EXTADP) (PATENT PENDING) ................................................................. 98
JOYSTICK MODE (PATENT PENDING)................................................................................................... 99
GAME PORT DECODER ...............................................................................................................100
PLUG AND PLAY CONFIGURATION ............................................................................................100
EXTENDED FUNCTION REGISTERS ............................................................................................100
EXTENDED FUNCTIONS ENABLE REGISTERS (EFERS)..........................................................................101
EXTENDED FUNCTION INDEX REGISTERS (EFIRS), EXTENDED FUNCTION DATA REGISTERS (EFDRS) ........101
BIT MAP CONFIGURATION REGISTERS ...............................................................................................137
SPECIFICATIONS..........................................................................................................................139
ABSOLUTE MAXIMUM RATINGS..........................................................................................................139
DC CHARACTERISTICS.............................................................................................................139
AC CHARACTERISTICS ....................................................................................................................141
TIMING WAVEFORMS ..................................................................................................................147
FDC ............................................................................................................................................147
UART/PARALLEL ...........................................................................................................................149
MODEM CONTROL TIMING................................................................................................................150
PARALLEL PORT.............................................................................................................................151
PARALLEL PORT TIMING ..................................................................................................................151
EPP DATA OR ADDRESS READ CYCLE (EPP VERSION 1.9)..................................................................152
EPP DATA OR ADDRESS WRITE CYCLE (EPP VERSION 1.9) ................................................................153
EPP DATA OR ADDRESS READ CYCLE (EPP VERSION 1.7)..................................................................154
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