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15
14.4.1
14.4.2
14.4.3
Operation stop mode.................................................................................................................207
Asynchronous serial interface (UART) mode ............................................................................209
3-wire serial I/O mode ...............................................................................................................222
CHAPTER 15 SMB0 (SYSTEM MANAGEMENT BUS 0) .......................................................................233
15.1 SMB0 Functions.......................................................................................................................233
15.2 SMB0 Configuration.................................................................................................................235
15.3 SMB0 Control Registers..........................................................................................................237
15.4 SMB0 Definition and Control Methods...................................................................................251
15.4.1
Start condition............................................................................................................................251
15.4.2
Address .....................................................................................................................................252
15.4.3
Specification of transmission direction ......................................................................................252
15.4.4
Acknowledge signal (ACK)........................................................................................................253
15.4.5
Stop condition............................................................................................................................254
15.4.6
Wait signal (WAIT).....................................................................................................................255
15.4.7
SMB0 interrupt (INTSMB0)........................................................................................................257
15.4.8
Interrupt request (INTSMB0) generation timing and wait control...............................................277
15.4.9
Matching address detection method..........................................................................................278
15.4.10 Error detection...........................................................................................................................278
15.4.11 Extension code..........................................................................................................................278
15.4.12 Arbitration..................................................................................................................................279
15.4.13 Wakeup function........................................................................................................................280
15.4.14 Communication reservation.......................................................................................................281
15.4.15 Additional cautions ....................................................................................................................283
15.4.16 Communication operation..........................................................................................................284
15.5 Timing Chart.............................................................................................................................286
CHAPTER 16 MULTIPLIER.....................................................................................................................293
16.1 Multiplier Function...................................................................................................................293
16.2 Multiplier Configuration...........................................................................................................293
16.3 Multiplier Control Register......................................................................................................295
16.4 Multiplier Operation .................................................................................................................296
CHAPTER 17 LOW-VOLTAGE INDICATOR..........................................................................................297
17.1 Low-Voltage Indicator Function .............................................................................................297
17.2 Low-Voltage Indicator Configuration.....................................................................................297
17.3 Low-Voltage Indicator Control Register ................................................................................298
17.4 Low-Voltage Indicator Operation............................................................................................299
CHAPTER 18 INTERRUPT FUNCTIONS................................................................................................303
18.1 Interrupt Function Types.........................................................................................................303
18.2 Interrupt Sources and Configuration.....................................................................................303
18.3 Interrupt Function Control Registers.....................................................................................306