w83877atd Winbond Electronics Corp America, w83877atd Datasheet - Page 3

• Manufacturer Part Number: w83877atd
• Description: Winbond I/o
• Manufacturer: Winbond Electronics Corp America

GENERAL DESCRIPTION ................................................................................................1
FEATURES ..........................................................................................................................2
1.0 PIN CONFIGURATION ...............................................................................................4
2.0 FDC FUNCTIONAL DESCRIPTION........................................................................16
3.0 UART PORT................................................................................................................39
4.0 PARALLEL PORT.....................................................................................................82
5.0 PLUG AND PLAY CONFIGURATION ....................................................................98
6.0 ACPI /LEGACY FEATURE AND AUTO POWER MANAGEMENT .....................98
7.0 SERIAL IRQ.................................................................................................................99
1.0
1.1
1.2
1.3
1.4
2.1
2.2
3.1
3.2
3.3
4.1
4.2
4.3
4.4
4.5
6.1
6.2
PIN DESCRIPTION ........................................................................................................................5
HOST INTERFACE .........................................................................................................................5
SERIAL PORT INTERFACE ...........................................................................................................7
MULTI-MODE PARALLEL PORT ..................................................................................................9
FDC INTERFACE..........................................................................................................................14
W83877ATF FDC...........................................................................................................................16
REGISTER DESCRIPTIONS .........................................................................................................28
UNIVERSAL ASYNCHRONOUS RECEIVER/TRANSMITTER (UART A, UART B)..................39
REGISTER ADDRESS...................................................................................................................40
INFRARED PORT .........................................................................................................................49
PRINTER INTERFACE LOGIC .....................................................................................................82
ENHANCED PARALLEL PORT (EPP) .........................................................................................84
EXTENDED CAPABILITIES PARALLEL (ECP) PORT ...............................................................88
EXTENSION FDD MODE (EXTFDD)...........................................................................................97
EXTENSION 2FDD MODE (EXT2FDD).......................................................................................97
ACPI/LEGACY POWER MANAGEMENT ...................................................................................98
DEVICE(AUTO) POWER MANAGEMENT..................................................................................98
TABLE OF CONTENTS
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Publication Release Date: July 1997
W83877ATF
Version 0.50