w83697 Winbond Electronics Corp America, w83697 Datasheet - Page 3

• Manufacturer Part Number: w83697
• Description: Winbond I/o
• Manufacturer: Winbond Electronics Corp America

GENERAL DESCRIPTION .....................................................................................................1
1.
1.1 LPC INTERFACE................................................................................................................................................................ 6
1.2 FDC INTERFACE................................................................................................................................................................ 7
1.3 MULTI-MODE PARALLEL PORT...................................................................................................................................8
1.4 SERIAL PORT INTERFACE............................................................................................................................................ 13
1.5 INFRARED PORT............................................................................................................................................................. 14
1.6 FRESH ROM INTERFACE .............................................................................................................................................. 14
1.7 HARDWARE MONITOR INTERFACE ........................................................................................................................ 15
1.8 GAME PORT & MIDI PORT........................................................................................................................................... 16
1.9 POWER PINS..................................................................................................................................................................... 17
2.
3.
3.1 W83697HF FDC................................................................................................................................................................. 19
3.2 REGISTER DESCRIPTIONS ............................................................................................................................................ 34
3.1.1 AT interface...............................................................................................................................................................19
3.1.2 FIFO (Data)..............................................................................................................................................................19
3.1.3 Data Separator.........................................................................................................................................................20
3.1.4 Write Precompensation...........................................................................................................................................20
3.1.5 FDC Core ..................................................................................................................................................................21
3.1.6 FDC Commands .......................................................................................................................................................21
3.1.7 FDC Commands .......................................................................................................................................................21
3.2.1 Status Register A (SA Register) (Read base address + 0)...............................................................................34
3.2.2 Status Register B (SB Register) (Read base address + 1)...............................................................................36
3.2.3 Digital Output Register (DO Register) (Write base address + 2) ..................................................................38
3.2.4 Tape Drive Register (TD Register) (Read base address + 3)..........................................................................38
3.2.5 Main Status Register (MS Register) (Read base address + 4)....................................................................... 39
PIN DESCRIPTION .....................................................................................................5
LPC (LOW PIN COUNT) INTERFACE.....................................................................18
FDC FUNCTIONAL DESCRIPTION........................................................................19
TABLE OF CONTENTS
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Publication Release Date: Feb. 2002
W83697HF/F
Revision 0.70