TMC2072 datasheet(4/106 Pages) SMSC

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Peripheral Mode CircLink™ Controller

Datasheet

Revision 0.1 (01-30-06)

Page 4

SMSC TMC2072

DATASHEET

2.9

Receive in Peripheral Mode .............................................................................................................. 39

2.9.1

Temporary Receive and Direct Receive .................................................................................................41

2.9.2

Example of Receive Flow in Free Format Mode .....................................................................................43

2.9.3

Example of Receive Flow in Remote Buffer Mode..................................................................................44

2.9.4

Warning Timer (WT) at Remote Buffer Receive .....................................................................................44

2.10

Diagnostic Mode ............................................................................................................................ 47

2.11

Network Standard Time (NST)....................................................................................................... 47

2.11.1

Functions Provided by NST.................................................................................................................48

2.11.2

Time-Synchronous Sequence .............................................................................................................49

2.11.3

Phase Error .........................................................................................................................................50

2.11.4

nNSTCOUT Pulse Generation Cycle ..................................................................................................53

2.12

CMI Modem.................................................................................................................................... 55

2.13

HUB Function................................................................................................................................. 56

2.13.1

Operation Example of HUB Function ..................................................................................................57

2.13.2

Timer Expansion in Multi-Stage Cascade Connection ........................................................................58

2.14

8bit General-purpose I/O Port (New Function) .............................................................................. 59

Chapter 3

Register Descriptions ......................................................................................................... 60

3.1

Register Map ..................................................................................................................................... 60

3.2

Register Details ................................................................................................................................. 63

3.2.1

COMR0 Register: Status/interrupt Mask Register ..................................................................................63

3.2.2

COMR1 Register: Diagnostic/Command Register ..................................................................................65

3.2.3

COMR2 Register: Page Register............................................................................................................67

3.2.4

COMR3 Register: Page-Internal Address Register.................................................................................68

3.2.5

COMR4 Register: Data Register.............................................................................................................69

3.2.6

COMR5 Register: Sub-address Register ................................................................................................69

3.2.7

COMR6 register: Configuration Register ................................................................................................70

3.2.8

COMR7 Register ....................................................................................................................................71

3.2.9

NST register: Network Standard Time ....................................................................................................75

3.2.10

INTSTA Register: EC Interrupt Status.................................................................................................75

3.2.11

INTMSK Register: EC Interrupt Mask .................................................................................................78

3.2.12

ECCMD Register: EC Command Register ..........................................................................................78

3.2.13

RSID Register: Receive SID ...............................................................................................................79

3.2.14

SSID Register: SID .............................................................................................................................80

3.2.15

RXFH Register: Receive Flag (higher side) ........................................................................................80

3.2.16

RXFL Register: Receive Flag (lower side) ..........................................................................................81

3.2.17

CMID register: Clock Master Node ID .................................................................................................82

3.2.18

MODE Register: Operation Mode Setup Register...............................................................................83

3.2.19

CARRY Register: Carry Selection for External Output ........................................................................85

3.2.20

RXMH Register: Receive Mode (higher side)......................................................................................86

3.2.21

RXML Register: Receive Mode (lower side)........................................................................................87

3.2.22

MAXID Register: Selection of Max. ID ................................................................................................88

3.2.23

NID Register: Selection of the Node ID...............................................................................................88

3.2.24

PS Register: Page Size Selection .......................................................................................................88

3.2.25

CKP Register: Communication Rate Selection ...................................................................................89

3.2.26

NSTDIF Register: NST Phase Difference ...........................................................................................89

3.2.27

PININFO Register: Pin Setup Information...........................................................................................90

3.2.28

ERRINFO Register: Error Information.................................................................................................90

Appendix A.

CMI Modem .................................................................................................................... 93

Appendix B.

Crystal Oscillation Circuit ........................................................................................... 100

Appendix C.

Package Outline ............................................................................................................ 101

Appendix D.

Marking Specifications................................................................................................. 102

Appendix E.

Electrical Characteristics ............................................................................................. 103

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