Datasheet

Rev. 2.00 Sep. 23, 2005 Page xvi of xxx
16.4.7 Noise Canceler...................................................................................................... 308
16.4.8 Example of Use..................................................................................................... 308
16.5 Interrupt Requests..............................................................................................................313
16.6 Bit Synchronous Circuit..................................................................................................... 314
16.7 Usage Notes....................................................................................................................... 315
16.7.1 Issue (Retransmission) of Start/Stop Conditions .................................................. 315
16.7.2 WAIT Setting in I
2
C Bus Mode Register (ICMR)................................................ 315
Section 17 A/D Converter .................................................................................289
17.1 Features.............................................................................................................................. 289
17.2 Input/Output Pins...............................................................................................................291
17.3 Register Descriptions......................................................................................................... 292
17.3.1 A/D Data Registers A to D (ADDRA to ADDRD) .............................................. 292
17.3.2 A/D Control/Status Register (ADCSR) ................................................................ 293
17.3.3 A/D Control Register (ADCR) ............................................................................. 294
17.4 Operation ........................................................................................................................... 295
17.4.1 Single Mode.......................................................................................................... 295
17.4.2 Scan Mode ............................................................................................................ 295
17.4.3 Input Sampling and A/D Conversion Time .......................................................... 296
17.4.4 External Trigger Input Timing.............................................................................. 297
17.5 A/D Conversion Accuracy Definitions.............................................................................. 298
17.6 Usage Notes....................................................................................................................... 301
17.6.1 Permissible Signal Source Impedance.................................................................. 301
17.6.2 Influences on Absolute Accuracy......................................................................... 301
Section 18 Power-On Reset and Low-Voltage Detection Circuits ...................331
18.1 Features.............................................................................................................................. 331
18.2 Register Descriptions......................................................................................................... 333
18.2.1 Low-Voltage-Detection Control Register (LVDCR)............................................ 333
18.2.2 Low-Voltage-Detection Status Register (LVDSR)............................................... 335
18.3 Operation ........................................................................................................................... 336
18.3.1 Power-On Reset Circuit........................................................................................ 336
18.3.2 Low-Voltage Detection Circuit............................................................................. 337
Section 19 Power Supply Circuit ......................................................................341
19.1 When Using Internal Power Supply Step-Down Circuit ................................................... 341
19.2 When not Using Internal Power Supply Step-Down Circuit ............................................. 342