Datasheet

Table Of Contents
Page xxvi of liv REJ09B0140-0900 Rev. 9.00
Sep 16, 2010
15.9.6 Data Register Overread or Overwrite ............................................................... 592
15.9.7 EP3o Isochronous Transfer............................................................................... 593
15.9.8 Reset ................................................................................................................. 595
15.9.9 EP0 Interrupt Assignment................................................................................. 595
15.9.10 Level Shifter for VBUS and IRQx Pins............................................................ 596
15.9.11 Read and Write to USB Endpoint Data Register .............................................. 596
15.9.12 Restrictions for Software Standby Mode Transition......................................... 596
15.9.13 USB External Circuit Example......................................................................... 598
15.9.14 Pin Processing when USB Not Used ................................................................ 599
15.9.15 Notes on Emulator Usage ................................................................................. 599
15.9.16 Notes on TR Interrupt....................................................................................... 599
15.9.17 Notes on UIFRO............................................................................................... 600
15.9.18 Clearing the FIFOs in DMA Transfer Mode..................................................... 600
Section 16 A/D Converter.................................................................................................. 601
16.1 Features............................................................................................................................. 601
16.2 Input/Output Pins.............................................................................................................. 603
16.3 Register Descriptions........................................................................................................ 603
16.3.1 A/D Data Registers A to D (ADDRA to ADDRD) .......................................... 604
16.3.2 A/D Control/Status Register (ADCSR) ............................................................ 604
16.3.3 A/D Control Register (ADCR) ......................................................................... 606
16.4 Interface to Bus Master..................................................................................................... 607
16.5 Operation .......................................................................................................................... 608
16.5.1 Single Mode...................................................................................................... 608
16.5.2 Scan Mode ........................................................................................................ 609
16.5.3 Input Sampling and A/D Conversion Time ...................................................... 610
16.5.4 External Trigger Input Timing.......................................................................... 612
16.6 Interrupts........................................................................................................................... 613
16.7 A/D Conversion Precision Definitions ............................................................................. 613
16.8 Usage Notes...................................................................................................................... 615
16.8.1 Permissible Signal Source Impedance.............................................................. 615
16.8.2 Influences on Absolute Precision...................................................................... 615
16.8.3 Range of Analog Power Supply and Other Pin Settings................................... 616
16.8.4 Notes on Board Design..................................................................................... 616
16.8.5 Notes on Noise Countermeasures..................................................................... 616
16.8.6 Module Stop Mode Setting............................................................................... 618
Section 17 D/A Converter.................................................................................................. 619
17.1 Features............................................................................................................................. 619
17.2 Input/Output Pins.............................................................................................................. 620