W83977A Winbond Electronics Corp America, W83977A Datasheet - Page 8

• Manufacturer Part Number: W83977A
• Description: Winbond I/O
• Manufacturer: Winbond Electronics Corp America

14. APPLICATION CIRCUITS .............................................................................................147
15. ORDERING INFORMATION.........................................................................................148
16. HOW TO READ THE TOP MARKING .......................................................................148
17. PACKAGE DIMENSIONS...............................................................................................149
13.4 KBC............................................................................................................................................................144
13.5 GPIO WRITE TIMING DIAGRAM .......................................................................................................146
13.6 MASTER RESET (MR) TIMING...........................................................................................................146
14.1 PARALLEL PORT EXTENSION FDD.................................................................................................147
14.2 PARALLEL PORT EXTENSION 2FDD...............................................................................................147
14.3 FOUR FDD MODE ..................................................................................................................................148
13.3.7 ECP PARALLEL PORT FORWARD TIMING......................................................................143
13.3.8 ECP PARALLEL PORT REVERSE TIMING........................................................................143
13.4.1 WRITE CYCLE TIMING..........................................................................................................144
13.4.2 READ CYCLE TIMING ...........................................................................................................144
13.4.3 SEND DATA TO K/B...............................................................................................................144
13.4.4 RECEIVE DATA FROM K/B ..................................................................................................145
13.4.5 INPUT CLOCK..........................................................................................................................145
13.4.6 SEND DATA TO MOUSE.......................................................................................................145
13.4.7 RECEIVE DATA FROM MOUSE ..........................................................................................145
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Publication Release Date: March 1998
W83977TF
Revision 0.62