Renesas H8S/2111B Bedienungsanleitung Seite 368
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13.4.8 Noise Canceller
The logic levels at the SCL and SDA pins are routed through noise cancellers before being latched
internally. Figure 13.28 shows a block diagram of the noise canceller.
The noise canceller consists of two cascaded latches and a match detector. The SCL (or SDA) pin
input signal is sampled on the system clock, but is not passed forward to the next circuit unless the
outputs of both latches agree. If they do not agree, the previous value is held.
System clock
cycle
Sampling clock
C
DQ
Latch
C
DQ
Latch
SCL or
SDA input signal
Match
detector
Internal SCL or
SDA signal
Sampling
clock
Figure 13.28 Block Diagram of Noise Canceler
- H8S/2111B 1
- Configuration of This Manual 5
- Preface 6
- Contents 9
- Figures 23
- Section 1 Overview 35
- 1.2 Internal Block Diagram 36
- 1.3 Pin Description 37
- 1.3.3 Pin Functions 43
- Table 1.2 Pin Functions 43
- Section 2 CPU 47
- 2.2 CPU Operating Modes 50
- Exception 51
- (Reserved for system use) 51
- Reserved 53
- 2.3 Address Space 54
- 2.4 Register Configuration 55
- SP (ER7) 57
- Free area 57
- Stack area 57
- 2.5 Data Formats 60
- 2.6 Instruction Set 63
- General register contents 78
- Don't care 79
- 2.8 Processing States 80
- External interrupt 81
- 2.9 Usage Notes 82
- 3.2 Register Descriptions 86
- 4.3 Reset 95
- Advanced mode 98
- Condition code register 99
- Program counter 99
- General register R1L 99
- Stack pointer 99
- 5.1 Features 101
- 5.2 Input/Output Pins 102
- 5.3 Register Descriptions 103
- • ISCRH 106
- • ISCRL 106
- • KMIMRA 108
- • KMIMR 108
- • WUEMRB 108
- 5.4 Interrupt Sources 110
- Vector Address 113
- Hold pending 115
- An interrupt with interrupt 118
- (1) (5) (7) (9) (11) (13) 119
- 5.7 Address Break 121
- 5.8 Usage Notes 124
- 6.1 Register Descriptions 127
- Section 7 I/O Ports 129
- Table 7.1 Port Functions 130
- 7.1 Port 1 134
- 7.2 Port 2 136
- 7.3 Port 3 138
- 7.4 Port 4 141
- • (IIC1AS+IIC1BS)* 143
- 7.5 Port 5 144
- 7.6 Port 6 146
- 7.7 Port 7 151
- 7.8 Port 8 152
- 7.9 Port 9 156
- • (IIC0AS+IIC0BS)* 157
- 7.10 Port A 159
- 7.11 Port B 163
- 7.12 Ports C, D 166
- 7.13 Ports E, F 170
- 7.14 Port G 176
- 8.1 Features 181
- 8.2 Input/Output Pins 182
- 8.3 Register Descriptions 182
- 8.4 Operation 187
- No additional pulse 188
- 8.4.1 PWM Setting Example 189
- 8.5 Usage Notes 190
- 9.1 Features 191
- Module data bus 192
- 9.2 Input/Output Pins 193
- 9.3 Register Descriptions 193
- 9.4 Operation 203
- 9.5 Operation Timing 204
- 9.5.3 FRC Clear Timing 205
- Input capture 206
- Input capture signal 206
- Overflow signal 209
- FRC H'FFFF H'0000 209
- 9.6 Interrupt Sources 211
- 9.7 Usage Notes 211
- New data 213
- 2 Switching from 214
- 4 Switching from 215
- 10.1 Features 217
- Table 10.1 TMR Function 218
- Internal bus 219
- 10.2 Input/Output Pins 222
- 10.3 Register Descriptions 223
- TCSR_0 230
- TCSR_Y 232
- TCSR_X 233
- TCSR_B 234
- TCSR_A 235
- 10.4 Operation 240
- 10.5 Operation Timing 241
- Compare-match A 242
- TCNT H'FF 243
- TICRR, TICRF read cycle 247
- 10.9 Interrupt Sources 249
- 10.10 Usage Notes 250
- Disabled 251
- 11.1 Features 255
- 11.2 Input/Output Pins 257
- 11.3 Register Descriptions 257
- • TCSR_0 258
- • TCSR_1 259
- 11.4 Operation 261
- TCNT value 262
- 11.5 Interrupt Sources 264
- 11.6 Usage Notes 265
- This LSI 267
- Reset input 267
- 12.1 Features 269
- 12.2 Input/Output Pins 270
- 12.3 Register Descriptions 271
- Mode Bit Rate Error 278
- Asynchronous mode 278
- Transmit/receive data 283
- 12.4.1 Data Transfer Format 284
- Formula (1) 285
- (Asynchronous Mode) 286
- D0 D1 D7 0/1 1 0 D0 D1 288
- <End> 292
- Transmitting 293
- Bit, One Stop Bit) 295
- Serial data 298
- Synchronization 298
- 12.7 Interrupt Sources 305
- 12.8 Usage Notes 306
- Port input/output 308
- Transmission start 308
- (Internal Clock) 309
- Section 13 I 311
- C Bus Interface (IIC) 311
- C Bus Interface 312
- Figure 13.2 I 313
- 13.2 Input/Output Pins 314
- 13.3 Register Descriptions 315
- 13.3.4 I 320
- C Bus Mode Register (ICMR) 320
- Table 13.3 I 322
- C Transfer Rate 322
- 13.3.5 I 323
- ICCR controls the I 323
- 13.3.6 I 331
- C Bus Status Register (ICSR) 331
- 13.3.8 I 336
- 13.4 Operation 341
- Figure 13.5 I 342
- C Bus Timing 342
- Table 13.6 I 342
- C Bus Data Format Symbols 342
- 13.4.2 Initialization 343
- [1] Initialization 344
- (master output) 347
- (slave output) 347
- 21436587989 347
- (HNDS = 1) 348
- (MLS = WAIT = 0, HNDS = 1) 350
- Clear IRIC flag in ICCR 351
- Read ICDR 351
- Set HNDS = 0 in ICXR 352
- Set WAIT = 0 in ICMR 352
- (MLS = ACKB = 0, WAIT = 1) 354
- Slave receive mode 356
- (MLS = 0, HNDS= 1) 358
- for the last reception 359
- [15] Clear IRIC 359
- [12] Detect stop condition 359
- (MLS = ACKB = 0, HNDS = 0) 361
- Clear IRIC in ICCR 362
- Set TRS = 0 in ICCR 362
- (MLS = 0) 364
- C bus format, wait inserted) 366
- User processing 367
- System clock 368
- 13.5 Interrupt Sources 370
- 13.6 Usage Notes 371
- Table 13.10 I 373
- Confirmation of stop 374
- condition issuance 374
- (read BBSY = 0) 374
- [1] SCL = low determination 377
- [2] IRIC clear 377
- R/W ASLA 381
- 14.1 Features 383
- 14.2 Input/Output Pins 384
- 14.3 Register Descriptions 385
- 14.4 Operation 389
- Receive 392
- 14.4.7 Receive Timing 397
- 14.5 Usage Notes 399
- 15.1 Features 401
- 15.2 Input/Output Pins 403
- 15.3 Register Descriptions 404
- • HICR0 405
- • HICR1 408
- • HICR3 412
- • STR1 416
- • STR2 417
- • SIRQCR0 421
- • SIRQCR1 424
- 15.4 Operation 430
- Master will 432
- At least 60 µs 438
- Pull-up enable 441
- 15.5 Interrupt Sources 442
- 15.6 Usage Notes 445
- Section 16 A/D Converter 447
- Successive approximations 448
- Multiplexer 448
- Bus interface 448
- 16.2 Input/Output Pins 449
- 16.3 Register Descriptions 450
- 16.4 Operation 453
- State of channel 2 (AN2) 454
- 16.5 Interrupt Sources 457
- Nonlinearity 458
- 16.7 Usage Notes 459
- To A/D converterAN0 to AN5 461
- Section 17 RAM 463
- Section 18 ROM 465
- • Programmer mode 466
- 18.2 Mode Transitions 467
- Figure 18.3 Boot Mode 468
- Boot program 469
- 18.3 Block Configuration 470
- 18.4 Input/Output Pins 471
- 18.5 Register Descriptions 471
- 18.6 Operating Modes 475
- ItemBoot mode start 477
- Bit rate adjustment 477
- Flash memory erase 477
- Transfer of programming 477
- Possible 478
- Program/erase? 479
- End of programming 481
- Set block start address 483
- 18.11 Programmer Mode 486
- 18.12 Usage Notes 487
- Subclock 489
- 19.1 Oscillator 490
- 19.5 Subclock Input Circuit 494
- 19.7 Clock Select Circuit 495
- 19.8 Usage Notes 495
- 20.1 Register Descriptions 497
- • MSTPCRH 501
- • MSTPCRL 501
- 20.3 Medium-Speed Mode 504
- 20.4 Sleep Mode 505
- 20.5 Software Standby Mode 505
- NMI exception 506
- 20.6 Hardware Standby Mode 507
- 20.7 Watch Mode 508
- 20.8 Subsleep Mode 509
- 20.9 Subactive Mode 510
- 20.10 Module Stop Mode 511
- 20.11 Direct Transitions 511
- 20.12 Usage Notes 512
- 21.2 Register Bits 523
- 22.2 DC Characteristics 548
- Darlington pair 552
- Ports 1 to 3 553
- 22.3 AC Characteristics 554
- — — ±7.5 LSB 560
- 22.6 Usage Note 563
- (i = 0, 1, 2, 6, 7) 564
- Ports 1 to 9, and A to G 566
- TMRI0, TMRI1 567
- TMIX, TMIY 567
- ExTMIX, ExTMIY 567
- TMIA, TMIB 567
- TxD1, ExTxD1 568
- (transmit data) 568
- Figure 22.22 I 569
- LAD3 to LAD0 570
- SERIRQ, CLKRUN 570
- (Transmit signal) 570
- Appendix 571
- B. Product Codes 572
- C. Package Dimensions 573
- Hardware Manual 579
- RENESAS SALES OFFICES 580
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