SH7705 datasheet(30/739 Pages) RENESAS

30 / 739 page

Rev. 2.00, 09/03, page xxx of xlvi

21.4

Operation .................................................................................................................... 533

21.4.1 Single Mode.................................................................................................... 533

21.4.2 Multi Mode ..................................................................................................... 533

21.4.3 Scan Mode ...................................................................................................... 534

21.4.4 Input Sampling and A/D Conversion Time....................................................... 534

21.5

Interrupts and DMAC Transfer Request ....................................................................... 536

21.6

Definitions of A/D Conversion Accuracy ..................................................................... 536

21.7

Usage Notes................................................................................................................. 538

21.7.1 Allowable Signal-Source Impedance................................................................ 538

21.7.2 Influence to Absolute Accuracy ....................................................................... 538

21.7.3 Setting Analog Input Voltage........................................................................... 538

21.7.4 Notes on Board Design.................................................................................... 539

21.7.5 Notes on Countermeasures to Noise................................................................. 539

Section 22 User Break Controller ................................................................... 541

22.1

Features....................................................................................................................... 541

22.2

Register Descriptions................................................................................................... 543

22.2.1 Break Address Register A (BARA).................................................................. 543

22.2.2 Break Address Mask Register A (BAMRA) ..................................................... 544

22.2.3 Break Bus Cycle Register A (BBRA)............................................................... 544

22.2.4 Break Address Register B (BARB) .................................................................. 545

22.2.5 Break Address Mask Register B (BAMRB) ..................................................... 546

22.2.6 Break Data Register B (BDRB) ....................................................................... 546

22.2.7 Break Data Mask Register B (BDMRB)........................................................... 547

22.2.8 Break Bus Cycle Register B (BBRB) ............................................................... 547

22.2.9 Break Control Register (BRCR)....................................................................... 549

22.2.10 Execution Times Break Register (BETR)......................................................... 552

22.2.11 Branch Source Register (BRSR) ...................................................................... 553

22.2.12 Branch Destination Register (BRDR)............................................................... 554

22.2.13 Break ASID Register A (BASRA) ................................................................... 554

22.2.14 Break ASID Register B (BASRB).................................................................... 555

22.3

Operation .................................................................................................................... 555

22.3.1 Flow of the User Break Operation.................................................................... 555

22.3.2 Break on Instruction Fetch Cycle ..................................................................... 557

22.3.3 Break on Data Access Cycle ............................................................................ 558

22.3.4 Sequential Break ............................................................................................. 559

22.3.5 Value of Saved Program Counter..................................................................... 559

22.3.6 PC Trace ......................................................................................................... 561

22.3.7 Usage Examples.............................................................................................. 562

22.3.8 Notes............................................................................................................... 566

Section 23 User Debugging Interface (UDI)................................................... 567

23.1

Features....................................................................................................................... 567

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