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W83977EF-AW Datasheet(PDF) 3 Page - Winbond

Part # W83977EF-AW
Description  WINBOND I/O
Download  150 Pages
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Manufacturer  WINBOND [Winbond]
Direct Link  http://www.winbond.com
Logo WINBOND - Winbond

W83977EF-AW Datasheet(HTML) 3 Page - Winbond

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W83977EF
Publication Release Date: April 2003
-II -
Revision 1.1
TABLE OF CONTENTS
GENERAL DESCRIPTION ..................................................................................................................... 1
FEATURES ............................................................................................................................................. 2
PIN CONFIGURATION ........................................................................................................................... 5
1.0 PIN DESCRIPTION.......................................................................................................................... 6
1.1 HOST INTERFACE ............................................................................................................................. 6
1.2 GENERAL PURPOSE I/O PORT .......................................................................................................... 8
1.3 SERIAL PORT INTERFACE.................................................................................................................. 9
1.4 INFRARED INTERFACE..................................................................................................................... 10
1.5 MULTI-MODE PARALLEL PORT ........................................................................................................ 11
1.6 FDC INTERFACE ............................................................................................................................ 16
1.7 KBC INTERFACE ............................................................................................................................ 18
1.8 POWER PINS.............................................................................................................................. 18
1.9 ACPI INTERFACE ........................................................................................................................... 18
2.0 FDC FUNCTIONAL DESCRIPTION............................................................................................... 19
2.1 W83977EF FDC .......................................................................................................................... 19
2.1.1 AT interface ........................................................................................................................... 19
2.1.2 FIFO (Data) ........................................................................................................................... 19
2.1.3 Data Separator...................................................................................................................... 20
2.1.4 Write Precompensation......................................................................................................... 20
2.1.5 Perpendicular Recording Mode ............................................................................................ 21
2.1.5 Perpendicular Recording Mode ............................................................................................ 21
2.1.6 FDC Core .............................................................................................................................. 21
2.1.7 FDC Commands ................................................................................................................... 21
2.2 REGISTER DESCRIPTIONS............................................................................................................... 33
2.2.1 Status Register A (SA Register) (Read base address + 0) .................................................. 33
2.2.2 Status Register B (SB Register) (Read base address + 1) .................................................. 35
2.2.3 Digital Output Register (DO Register) (Write base address + 2).......................................... 37
2.2.4 Tape Drive Register (TD Register) (Read base address + 3) .............................................. 37
2.2.5 Main Status Register (MS Register) (Read base address + 4) ............................................ 38
2.2.6 Data Rate Register (DR Register) (Write base address + 4) ............................................... 38
2.2.7 FIFO Register (R/W base address + 5) ................................................................................ 40
2.2.8 Digital Input Register (DI Register) (Read base address + 7) .............................................. 42
2.2.9 Configuration Control Register (CC Register) (Write base address + 7) ............................. 43
3.0 UART PORT.................................................................................................................................... 45
3.1 UNIVERSAL ASYNCHRONOUS RECEIVER/TRANSMITTER (UART A, UART B) .................................... 45
3.2 REGISTER ADDRESS ...................................................................................................................... 45
3.2.1 UART Control Register (UCR) (Read/Write) ........................................................................ 45
3.2.2 UART Status Register (USR) (Read/Write) .......................................................................... 48
3.2.3 Handshake Control Register (HCR) (Read/Write)................................................................ 48


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