W79E217A Datasheet, PDF (3/207 Pages) Winbond – 8-bit Microcontroller

Preliminary W79E217A Data Sheet
17.2.4 Status Register, I2STATUS........................................................................................146
17.2.5 I2C Clock Baud Rate Control, I2CLK..........................................................................146
17.2.6 I2C Time-out Counter, I2Timer ...................................................................................146
17.2.7 I2C Maskable Slave Address .....................................................................................147
17.3 Modes of Operation .................................................................................................... 147
17.3.1 Master Transmitter Mode ...........................................................................................147
17.3.2 Master Receiver Mode ...............................................................................................148
17.3.3 Slave Receiver Mode .................................................................................................148
17.3.4 Slave Transmitter Mode .............................................................................................148
17.4 Data Transfer Flow in Five Operating Modes............................................................. 148
17.4.1 Master/Transmitter Mode ...........................................................................................149
17.4.2 Master/Receiver Mode ...............................................................................................150
17.4.3 Slave/Transmitter Mode .............................................................................................151
17.4.4 Slave/Receiver Mode .................................................................................................152
17.4.5 GC Mode ....................................................................................................................153
18. SERIAL PERIPHERAL INTERFACE (SPI)............................................................................. 154
18.1 General descriptions................................................................................................... 154
18.2 Block descriptions ....................................................................................................... 154
18.3 Functional descriptions ............................................................................................... 156
18.3.1 Master mode ..............................................................................................................156
18.3.2 Slave Mode ................................................................................................................159
18.3.3 Slave select ................................................................................................................163
18.3.4 /SS output...................................................................................................................163
18.3.5 SPI I/O pins mode ......................................................................................................164
18.3.6 Programmable serial clock’s phase and polarity ........................................................165
18.3.7 Receive double buffered data register........................................................................165
18.3.8 LSB first enable ..........................................................................................................166
18.3.9 Write Collision detection .............................................................................................166
18.3.10 Transfer complete interrupt ......................................................................................166
18.3.11 Mode Fault ...............................................................................................................166
19. ANALOG-TO-DIGITAL CONVERTER .................................................................................... 169
19.1 Operation of ADC ....................................................................................................... 169
19.2 ADC Resolution and Analog Supply ........................................................................... 170
20. LCD DISPLAY......................................................................................................................... 171
20.1 LCD Features.............................................................................................................. 171
20.2 LCD Frequency........................................................................................................... 172
20.3 LCD Power Connection .............................................................................................. 177
20.4 LCD Option Bits .......................................................................................................... 179
20.5 LCD Display ................................................................................................................ 179
21. TIMED ACCESS PROTECTION ............................................................................................ 182
22. PORT 4 STRUCTURE ............................................................................................................ 184
23. IN-SYSTEM PROGRAMMING................................................................................................ 187
23.1 The Loader Program Locates at LDFlash Memory .................................................... 187
Publication Release Date: December 14, 2007
-3-
Revision A3.0