Datasheet

Table Of Contents
Rev. 2.00 Jul. 04, 2007 Page xx of xl
18.3.2 Serial Control/Status Register 4 (SCSR4) ............................................................ 418
18.3.3 Transmit Data Register 4 (TDR4)......................................................................... 421
18.3.4 Receive Data Register 4 (RDR4).......................................................................... 421
18.3.5 Shift Register 4 (SR4)........................................................................................... 421
18.4 Operation ........................................................................................................................... 422
18.4.1 Clock..................................................................................................................... 422
18.4.2 Data Transfer Format............................................................................................ 422
18.4.3 Data Transmission/Reception ............................................................................... 423
18.4.4 Data Transmission ................................................................................................ 424
18.4.5 Data Reception...................................................................................................... 426
18.4.6 Simultaneous Data Transmission and Reception.................................................. 428
18.5 Interrupt Sources................................................................................................................ 429
18.6 Usage Notes ....................................................................................................................... 430
18.6.1 Relationship between Writing to TDR4 and TDRE ............................................. 430
18.6.2 Receive Error Flag and Transmission................................................................... 430
18.6.3 Relationship between Reading RDR4 and RDRF ................................................ 430
18.6.4 SCK4 Output Waveform when Internal Clock of φ/2 is Selected......................... 431
Section 19 14-Bit PWM ....................................................................................433
19.1 Features.............................................................................................................................. 433
19.2 Input/Output Pins............................................................................................................... 434
19.3 Register Descriptions......................................................................................................... 434
19.3.1 PWM Control Register (PWCR) .......................................................................... 435
19.3.2 PWM Data Register (PWDR)............................................................................... 436
19.4 Operation ........................................................................................................................... 436
19.4.1 Principle of Pulse-Division Type PWM ............................................................... 436
19.4.2 Setting for Pulse-Division Type PWM Operation ................................................ 437
19.4.3 Operation of Pulse-Division Type PWM.............................................................. 437
19.4.4 Setting for Standard PWM Operation................................................................... 438
19.4.5 PWM Operating States ......................................................................................... 439
19.5 Usage Notes ....................................................................................................................... 439
19.5.1 Timing of Writing to PWDR and Reflection in the PWM Waveform.................. 439
Section 20 A/D Converter .................................................................................441
20.1 Features.............................................................................................................................. 441
20.2 Input/Output Pins............................................................................................................... 443
20.3 Register Descriptions......................................................................................................... 443
20.3.1 A/D Result Register (ADRR) ............................................................................... 444
20.3.2 A/D Mode Register (AMR) .................................................................................. 444
20.3.3 A/D Start Register (ADSR) .................................................................................. 446