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MPC5200B Users Guide, Rev. 1
18-2 Freescale Semiconductor
I
2
C Controller
Figure 18-1. Block Diagram—I
2
C Module
18.2 I
2
C Controller
The I
2
C has simple bidirectional two-wire bus for efficient inter-IC control. The two wires, serial data line (SDA) and serial clock line (SCL),
carry information between MPC5200B and other devices connected to the bus. Each device, including MPC5200B, is recognized by a unique
address, and can operate as either transmitter or receiver, depending on the function of the device. In addition to the transmitters and receivers,
devices can be considered as masters or slaves. A master is the device which initiates a data transfer on the bus and generates the clock signals
to permit that transfer. At that time, any device addressed is considered a slave. See Table 18-1.
Standard communication usually has 4 functional areas:
•START signal
• slave address transmission
• data transfer
• STOP signal
Activities listed above are briefly described in the sections below. Also see Figure 18-1.
18.2.1 START Signal
A START signal is defined as a high-to-low transition of SDA while SCL is high. This signal denotes the beginning of a new data transfer
and wakes up all slaves. Each data transfer may contain several data bytes.
When the bus is free, (i.e., no master device is engaging the bus) both SCL and SDA lines are at a logical high. A master initiates
communication by sending a START signal.
18.2.2 STOP Signal
A STOP signal is defined as a low-to-high transition of SDA while SCL is high.
Table 18-1. I
2
C Terminology
Term Description
Transmitter Device that sends data to bus.
Receiver Device that receives data from bus.
Master Device that initiates transfer, generates SCL, and terminates transfer.
Slave Device that is addressed by master.
IP Bus
Address
Compare
Data Shift
Register
In/Out
Start, Stop
& Arbitration
Control
Control
Clock
Registers
SCL
SDA
CommBus
- MPC5200B Users Guide 1
- Table of Contents 2
- Chapter 10 PCI Controller 7
- Chapter 11 ATA Controller 9
- Paragraph Page 10
- Number Number 10
- Chapter 16 XLB Arbiter 15
- Appendix A Acronyms and Terms 19
- Appendix B List of Registers 19
- List of Figures 20
- Figure Page 21
- LOF-4 Freescale Semiconductor 23
- List of Tables 24
- Table Page 25
- Revision History 34
- Freescale Semiconductor 35
- Chapter 1 36
- Introduction 36
- 1.2 Architecture 37
- 1.2.1 Embedded e300 Core 40
- 1.2.2 BestComm I/O Subsystem 41
- 1.2.5 System Level Interfaces 42
- 1.2.8 Power Management 43
- 1.2.9 Systems Debug and Test 44
- 1-10 Freescale Semiconductor 45
- Architecture 45
- Chapter 2 46
- View Looking at Pins (Balls) 47
- Freescale Semiconductor 2-3 48
- 2.2 Pinout Tables 49
- 2-14 Freescale Semiconductor 59
- Freescale Semiconductor 2-15 60
- 2-16 Freescale Semiconductor 61
- Freescale Semiconductor 2-17 62
- 2-18 Freescale Semiconductor 63
- Freescale Semiconductor 2-19 64
- Pin EXT_AD_19 Ball Y04 65
- Freescale Semiconductor 2-21 66
- 2-22 Freescale Semiconductor 67
- Freescale Semiconductor 2-23 68
- 2-24 Freescale Semiconductor 69
- Freescale Semiconductor 2-25 70
- 2-26 Freescale Semiconductor 71
- Freescale Semiconductor 2-27 72
- 2-28 Freescale Semiconductor 73
- Freescale Semiconductor 2-29 74
- 2-30 Freescale Semiconductor 75
- 2-32 Freescale Semiconductor 77
- Freescale Semiconductor 2-33 78
- Freescale Semiconductor 2-35 80
- 2-36 Freescale Semiconductor 81
- GPIOUSB2UART3(e) CODEC3 SPI 82
- GPIO hi - z LP_CS_6 85
- Function 88
- Port_conf 88
- Table 2-16. USB Pin Functions 89
- ETH_0 ETH_1 ETH_2 ETH_3 ETH_4 91
- ETH_5 ETH_6 ETH_7 91
- Freescale Semiconductor 2-49 94
- 2-50 Freescale Semiconductor 95
- Freescale Semiconductor 2-51 96
- 2-52 Freescale Semiconductor 97
- Freescale Semiconductor 2-53 98
- 2-54 Freescale Semiconductor 99
- Pinout Tables 100
- Freescale Semiconductor 2-55 100
- 2-56 Freescale Semiconductor 101
- Notes: 101
- Freescale Semiconductor 2-57 102
- 2-58 Freescale Semiconductor 103
- Freescale Semiconductor 2-59 104
- 2-60 Freescale Semiconductor 105
- Freescale Semiconductor 2-61 106
- PIN / BALL NUMBER Function 108
- Description 108
- Freescale Semiconductor 2-67 112
- I2C_0 I2C_1 I2C_2 I2C_3 112
- MPC5200B Users Guide, Rev. 1 113
- Signal Descriptions 119
- 2-74 Freescale Semiconductor 119
- Chapter 3 120
- Memory Map 120
- 3.3 MPC5200B Memory Map 122
- 3.3.2.2 LocalPlus Bus 123
- Name Description 124
- Chapter 4 128
- 4.3 Reset Sequence 129
- 4.4 Reset Operation 129
- 4.5 Other Resets 130
- 4.6 Reset Configuration 131
- 4-6 Freescale Semiconductor 133
- Chapter 5 134
- Clocks and Power Management 134
- System APLL 136
- Core APLL 136
- Table 5-2. System PLL Ratios 137
- 5.3.2 e300 Core Clock Domain 138
- DDR SDRAM Memory Clocks 141
- SDR SDRAM Memory Clocks 141
- 5.4 Power Management 142
- 5.4.4 Deep-Sleep Mode 143
- 5.5 CDM Registers 144
- ) Manufacturer (Freescale) 145
- 5-24 Freescale Semiconductor 157
- CDM Registers 157
- Chapter 6 158
- Chapter 7 160
- System Integration Unit (SIU) 160
- 7.2.2 Interface Description 163
- 7.2.3 Programming Note 163
- (IC, OC, PWM) 163
- Reserved 168
- Table 7-20. GPIO Pin List 181
- 7.3.1 GPIO Pin Multiplexing 184
- 7.3.1.4 USB1/RST_CONFIG 185
- 7.3.1.6 PSC6 186
- 7.3.1.7 I 186
- 7.3.1.8 GPIO Timer Pins 186
- 7.3.2 GPIO Programmer’s Model 187
- —MBAR + 0x0B00 188
- —MBAR + 0x0B04 190
- 0x0C00. Register addresses 206
- 7.4.2 Mode Overview 214
- 7.4.3 Programming Notes 214
- to this offset 215
- 7.5 Slice Timers 221
- SLT 1 Terminal Count Register 222
- SLT 1 Control Register 222
- SLT 1 Count Value Register 223
- 7.6 Real-Time Clock 224
- 7.6.1 Real-Time Clock Signals 225
- 7.6.2 Programming Note 225
- 7-74 Freescale Semiconductor 233
- Real-Time Clock 233
- Chapter 8 234
- SDRAM Memory Controller 234
- 8.3 Features 235
- 8.3.1 Devices Supported 236
- 8.4 Functional Description 248
- 8.4.2 Block Diagram 249
- 8.4.3 Transfer Size 249
- 8.4.4 Commands 250
- 8.4.4.4 Read Command 251
- 8.4.4.5 Write Command 251
- 8.5 Operation 252
- 8.5.2 Read Clock 253
- Table 8-7. High Address Usage 256
- 8.8 Address Bus Mapping 263
- 8-32 Freescale Semiconductor 265
- Address Bus Mapping 265
- row address bit, the 265
- Chapter 9 266
- 9.3 Interface 267
- 9.3.2 Block Diagram 268
- 9.4 Modes of Operation 269
- Valid Address 271
- Valid write Data 271
- Valid read Data 271
- 9.4.2 MUXed Mode 272
- 9.4.2.1 Address Tenure 273
- 9.4.2.2 Data Tenure 273
- 9.5 Configuration 274
- 9.5.3 Reset Configuration 275
- 9.7 Programmer’s Model 276
- 9-32 Freescale Semiconductor 297
- Chapter 10 298
- PCI Controller 298
- External 299
- 10.2.6.1 PCI_PAR - Parity 300
- 10.3 Registers 301
- Mnemonic Name 302
- Section 3.2, Internal 303
- Table 1 316
- 7PCI Arbiter Soft 320
- Bits Name Description 325
- 10.4 Functional Description 341
- 10.4.1 PCI Bus Protocol 342
- 10.4.1.3 PCI Transactions 343
- 10.4.1.4 PCI Bus Commands 344
- 10.4.1.5 Addressing 345
- 10.4.2 Initiator Arbitration 348
- 10.4.4.1 Endian Translation 349
- 10.4.5.2 Local Memory Writes 355
- 10.4.5.3 Data Translation 355
- 10.4.5.4 Target Abort 356
- 10.4.5.5 Latrule Disable 356
- 10.4.6.1 Access Width 357
- 10.4.6.2 Addressing 357
- 10.4.6.3 Data Translation 357
- 10.4.6.4 Initialization 357
- 10.4.6.5 Restart and Reset 358
- 10.4.6.6 PCI Commands 358
- 10.4.6.7 FIFO Considerations 358
- 10.5 PCI Arbiter 359
- 10.6 Application Information 360
- 10.6.2 Address Maps 361
- 10-68 Freescale Semiconductor 365
- Application Information 365
- Chapter 11 366
- ATA Controller 366
- 11.3 ATA Register Interface 367
- Table 11-12. ata_shre_cnt 373
- 2. Repeat 383
- 11.4.1 PIO State Machine 386
- 11.4.2 DMA State Machine 387
- 11.5 Signals and Connections 388
- 11.7 ATA Bus Background 391
- 11.7.2 ATA Modes 392
- 11.7.3 ATA Addressing 392
- 11.7.3.2 Drive Interrupt 393
- 11.7.3.3 Sector Addressing 393
- 11.7.4 ATA Transactions 395
- 11.7.4.1.1 Class 1—PIO Read 395
- 11.7.4.1.2 Class 2—PIO Write 396
- shows the Non-Data Command 397
- 11-34 Freescale Semiconductor 399
- ATA Bus Background 399
- 11.7.4.4 Ultra DMA Protocol 400
- 11.8 ATA RESET/Power-Up 401
- 11-38 Freescale Semiconductor 403
- 12.1 Overview 404
- 12.2 Data Transfer Types 404
- 12.3.1 Communication Channels 405
- 12.3.2 Data Structures 406
- 12.4.1 Programming Note 408
- Universal Serial Bus (USB) 433
- 12-30 Freescale Semiconductor 433
- Chapter 13 434
- BestComm 434
- 13.3 Features summary 435
- 13.4 Descriptors 435
- 13.5 Tasks 435
- —MBAR + 0x1210 439
- SDMA Task Control 1 Register 442
- SDMA Task Control 3 Register 443
- SDMA Task Control 5 Register 444
- SDMA Task Control 7 Register 444
- SDMA Task Control 9 Register 445
- SDMA Task Control B Register 445
- SDMA Task Control D Register 446
- SDMA Task Control F Register 446
- 13.15.31 SDMA 458
- —MBAR + 0x1278 458
- 13.16 On-Chip SRAM 461
- 13.17 Programming Model 461
- 13.17.2 Variable Table 463
- Contents Comments 464
- 13-32 Freescale Semiconductor 465
- Programming Model 465
- Chapter 14 466
- Tx FIFO (1KByte) 467
- Rx FIFO (1KByte) 467
- 14.2 Modes of Operation 468
- 14.3 I/O Signal Overview 468
- Table 14-6. Module Memory Map 472
- Table 14-7. CSR Counters 472
- Table 14-8. MIB Counters 474
- Table 14-9. FEC ID Register 476
- R Reserved 478
- RESET:0 00000000 0 0 0 00 0 0 478
- 14.6 FIFO Interface 492
- FEC Tx FIFO Status Register 493
- FEC Tx FIFO Control Register 495
- 14.9 Initialization Sequence 499
- 14.9.5 FEC Frame Reception 502
- Initialization Sequence 504
- Freescale Semiconductor 14-39 504
- 14.9.8 Inter-Packet Gap Time 508
- 14.9.9 Collision Handling 508
- 14.9.11.1 Transmission Errors 509
- 14.9.11.2 Reception Errors 509
- 14-46 Freescale Semiconductor 511
- Chapter 15 512
- Interrupt 513
- Control Logic 513
- 15.1.2 Features 514
- Table 15-2. PSC Memory Map 515
- Table 15-9. Stop-Bit Lengths 519
- 0 = No break received 520
- Freescale Semiconductor 15-15 526
- 15-24 Freescale Semiconductor 535
- MclkDiv [8:0] + 1 536
- 0:1 — Reserved 550
- 15.3 PSC Operation Modes 555
- 15.3.2 PSC in Codec Mode 560
- MclkDiv[8:0]+1 561
- Frame length 566
- Data width 569
- IPB clock frequency 570
- 15.3.3 PSC in AC97 Mode 572
- SDATA_OUT 574
- 15.3.4 PSC in IrDA mode 576
- {CTUR:CTLR} 577
- 15.3.4.2 PSC in MIR Mode 578
- 15.3.4.3 PSC in FIR Mode 581
- 15.4 PSC FIFO System 582
- 15.4.2 TX FIFO 585
- 15.4.3 Looping Modes 585
- 15.4.4 Multidrop Mode 586
- Chapter 16 588
- XLB Arbiter 588
- 16.1.1.2.1 Bus Grant 589
- 16.1.1.2.2 Parking Modes 589
- 16.1.1.4.1 Timer Functions 589
- (RW)—MBAR + 0x1F70 599
- 16-14 Freescale Semiconductor 601
- Chapter 17 602
- 17.2 SPI Signal Description 603
- Table 17-9. SPI Data Register 608
- 17.4 Functional Description 609
- 17.4.3 Slave Mode 610
- 17.4.4 Transmission Formats 610
- SHIFT REGISTER 611
- 17.4.6 Special Features 614
- SPR 1+() 614
- 17.4.7 Error Conditions 615
- 17.4.8 Low Power Mode Options 615
- 17.4.9 SPI Interrupts 616
- 17-16 Freescale Semiconductor 617
- Functional Description 617
- Chapter 18 618
- Inter-Integrated Circuit (I 618
- C Controller 619
- 18.2.2.2 Data Transfer 620
- 18.2.2.3 Acknowledge 620
- 18.2.2.4 Repeated Start 621
- C Interface Registers 622
- Table 18-2. I 623
- C Address Register 623
- Table 18-3. I 623
- C Frequency Divider Register 623
- 18.3.3 I 630
- 18.3.4 I 632
- 18.3.5 I 633
- 18.3.6 I 634
- 18.3.7 I 635
- 18.4 Initialization Sequence 636
- 18.5.3 Special Note on AKF 637
- Freescale Semiconductor 18-21 638
- 18-22 Freescale Semiconductor 639
- 19.1 Overview 640
- 19.2 Features 641
- 19.3 External Signals 641
- 19.4 CAN System 641
- 19.5.1 Module Memory Map 642
- Table 19-2. Module Memory Map 643
- 19.5.2 Register Descriptions 644
- R SJW[1:0] BRP[5:0] 647
- RESET:00000000 647
- 0x920 / 0x9A0 CANIDR0 657
- 0x921 / 0x9A1 CANIDR1 657
- 0x924 / 0x9A4 CANIDR2 657
- 0x925 / 0x9A5 CANIDR3 657
- 0x930 / 0x9B0 CANIDR4 658
- 0x931 / 0x9B1 CANIDR5 658
- 0x934 / 0x9B4 CANIDR6 658
- 0x935 / 0x9B5 CANIDR7 658
- 0x928 / 0x9A8 CANIDMR0 659
- 0x929 / 0x9A9 CANIDMR1 659
- 0x92C / 0x9AC CANIDMR2 659
- 0x92D / 0x9AD CANIDMR3 659
- 0x938 / 0x9B8 CANIDMR4 660
- 0x939 / 0x9B9 CANIDMR5 660
- 0x93C / 0x9BC CANIDMR6 660
- 0x93D / 0x9BD CANIDMR7 660
- = Unused 661
- 19.7 Functional Description 665
- Receiver 666
- Transmitter 666
- 19.7.2.2 Transmit Structures 667
- 19.7.2.3 Receive Structures 667
- 19-30 Freescale Semiconductor 669
- Freescale Semiconductor 19-31 670
- Bit Rate 672
- 19.7.6 Timer Link 673
- 19.7.7 Modes of Operation 673
- 19.7.8 Low Power Options 673
- 19.7.8.1 CPU Run Mode 674
- 19.7.8.2 CPU Sleep Mode 674
- 19.7.8.3 CPU Deep Sleep Mode 674
- 19.7.8.4 MSCAN Sleep Mode 674
- 19.7.9.1 Transmit Interrupt 677
- 19.7.9.2 Receive Interrupt 677
- 19.7.9.3 Wake-Up Interrupt 677
- 19.7.10 Interrupt Acknowledge 678
- 19-40 Freescale Semiconductor 679
- Chapter 20 680
- CPU Interface 683
- Protocol Handler 683
- MUX Interface 683
- 20.5 Signal Description 684
- 20.6 Overview 684
- 20.7 Memory Map and Registers 684
- — Clock Select (Bit 6) 685
- — Interrupt Enable (Bit 1) 685
- BDLC State Vector Register 686
- Table 1-1. Interrupt Summary 686
- — State Machine Reset (Bit 7) 687
- — 4X Mode Enable (Bit 5) 688
- Corresponding Expected 692
- — Rate Select (Bits 7-0) 693
- — BDLC Enable (Bit 4) 694
- — send BREAK signal (Bit 0) 694
- 20.8 Functional Description 695
- 20.8.1.2 J1850 VPW Symbols 696
- Transmitter A 704
- Transmitter B 704
- J1850 Bus 704
- 20.8.1.4 J1850 Bus Errors 705
- 20.8.2 Mux Interface 706
- 20.8.5.4 Receiving Exceptions 713
- 20.9 Resets 729
- Chapter 21 730
- TAP Link Module 731
- Freescale Semiconductor 21-3 732
- 21.3.1 Test Reset (TRST) 733
- 21.3.2 Test Clock (TCK) 733
- 21.3.3 Test Mode Select (TMS) 733
- 21.3.4 Test Data In (TDI) 733
- 21.4 Slave Test Reset (STRST) 734
- 21.5 TAP State Machines 734
- 21.7 TLM Link DR Instructions 736
- 21.8 TLM Test Instructions 737
- 21.9 e300 COP/BDM Interface 738
- 21-10 Freescale Semiconductor 739
- Appendix A 740
- Acronyms and Terms 740
- Appendix B 752
- List of Registers 752
- B-4 Freescale Semiconductor 755
- B-6 Freescale Semiconductor 757
- Freescale Semiconductor B-7 758
- B-8 Freescale Semiconductor 759
- Freescale Semiconductor B-9 760
- B-10 Freescale Semiconductor 761
- How to Reach Us: 762
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