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CHAPTER 9 WATCHDOG TIMER ..........................................................................................................119
9.1
9.2
9.3
9.4
Watchdog Timer Functions.....................................................................................................119
Watchdog Timer Configuration ..............................................................................................120
Watchdog Timer Control Registers........................................................................................121
Watchdog Timer Operation.....................................................................................................123
9.4.1
Operation as watchdog timer.....................................................................................................123
9.4.2
Operation as interval timer ........................................................................................................124
CHAPTER 10 CLOCK OUTPUT CIRCUIT..............................................................................................125
10.1 Clock Output Circuit Functions..............................................................................................125
10.2 Clock Output Circuit Configuration .......................................................................................126
10.3 Clock Output Circuit Control Registers.................................................................................127
10.4 Operation of Clock Output Circuit..........................................................................................129
10.4.1
PCL output operation ................................................................................................................129
10.4.2
Buzzer output operation ............................................................................................................130
CHAPTER 11 SERIAL INTERFACE .......................................................................................................131
11.1 Serial Interface Functions.......................................................................................................131
11.2 Serial Interface Configuration.................................................................................................132
11.3 Serial Interface Control Registers..........................................................................................133
11.4 Serial Interface Operation .......................................................................................................137
11.4.1
Operation stop mode.................................................................................................................137
11.4.2
Asynchronous serial interface (UART) mode............................................................................138
CHAPTER 12 LCD CONTROLLER/DRIVER..........................................................................................149
12.1 LCD Controller/Driver Functions............................................................................................149
12.2 LCD Controller/Driver Configuration .....................................................................................149
12.3 Registers Controlling LCD Controller/Driver ........................................................................151
12.4 Setting Up LCD Controller/Driver...........................................................................................154
12.5 LCD Display Data Memory ......................................................................................................154
12.6 Supplying LCD Drive Voltage .................................................................................................157
12.7 LCD Display..............................................................................................................................158
CHAPTER 13 INTERRUPT FUNCTIONS................................................................................................159
13.1 Interrupt Function Types.........................................................................................................159
13.2 Interrupt Sources and Configuration.....................................................................................160
13.3 Interrupt Function Control Registers.....................................................................................162
13.4 Interrupt Processing Operation..............................................................................................169
13.4.1
Non-maskable interrupt request acceptance operation.............................................................169
13.4.2
Maskable interrupt acceptance operation .................................................................................171
13.4.3
Multiplexed interrupt processing................................................................................................172
13.4.4
Interrupt request reserve...........................................................................................................174