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Rainbow Electronics AT89C5132 User Manual

Page 161

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161

AT8xC5132

4173A–8051–08/02

Serial I/O Port .................................................................................... 107

Mode Selection ................................................................................................. 107

Baud Rate Generator........................................................................................ 107

Synchronous Mode (Mode 0) ........................................................................... 108

Asynchronous Modes (Modes 1, 2 and 3) .........................................................110

Multiprocessor Communication (Modes 2 and 3) ..............................................113

Automatic Address Recognition........................................................................ 113

Interrupt .............................................................................................................115

Registers............................................................................................................116

Synchronous Peripheral Interface .................................................. 119

Description.........................................................................................................120

Interrupt ............................................................................................................ 123

Configuration .....................................................................................................124

Registers........................................................................................................... 127

Analog-to-Digital Converter ............................................................. 129

Description........................................................................................................ 129

Registers............................................................................................................132

Keyboard Interface ........................................................................... 134

Description........................................................................................................ 134

Registers............................................................................................................135

Electrical Characteristics ................................................................. 136

Absolute Maximum Ratings .............................................................................. 136

DC Characteristics............................................................................................ 136

AC Characteristics ............................................................................................ 141

Ordering Information ........................................................................ 155

Package Information ........................................................................ 156

TQFP80 ............................................................................................................ 156

PLCC84 .............................................................................................................157

TQFP64 ............................................................................................................ 158