
Preliminary W79E217A Data Sheet
Publication Release Date: December 14, 2007
- 3 -
Revision A3.0
17.2.4
17.2.5
17.2.6
17.2.7
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
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
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
ANALOG-TO-DIGITAL CONVERTER....................................................................................169
19.1
Operation of ADC .......................................................................................................169
19.2
ADC Resolution and Analog Supply........................................................................... 170
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
TIMED ACCESS PROTECTION ............................................................................................ 182
PORT 4 STRUCTURE............................................................................................................184
IN-SYSTEM PROGRAMMING................................................................................................ 187
23.1
The Loader Program Locates at LDFlash Memory ....................................................187
Status Register, I2STATUS........................................................................................146
I2C Clock Baud Rate Control, I2CLK..........................................................................146
I2C Time-out Counter, I2Timer...................................................................................146
I2C Maskable Slave Address .....................................................................................147
17.3
17.4
18.
19.
20.
21.
22.
23.