TMC2074 Просмотр технического описания (PDF) - SMSC -> Microchip
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TMC2074 Datasheet PDF : 116 Pages
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Dual Mode CircLink™ Controller
Datasheet
2.6.2 Interface Restrictions .....................................................................................................................................34
2.7 CircLink Operation and Communication Modes ..........................................................................................35
2.7.1 Operational Mode ..........................................................................................................................................35
2.7.2 Communication Mode ....................................................................................................................................36
2.8 Sending in Peripheral Mode ...........................................................................................................................38
2.8.1 Example of Sending Control from CPU in Free Format Mode .......................................................................38
2.8.2 TX Control from CPU in Remote Buffer Mode ...............................................................................................39
2.9 Receive in Peripheral Mode............................................................................................................................39
2.9.1 Temporary Receive and Direct Receive ........................................................................................................40
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
2.10.1
2.10.2
2.10.3
Standalone Mode .........................................................................................................................................47
General Description of Standalone Mode...................................................................................................47
Sending in Standalone Mode .....................................................................................................................47
Reception in Standalone Mode ..................................................................................................................50
2.11 Diagnostic Mode ..........................................................................................................................................54
2.12
2.12.1
2.12.2
2.12.3
2.12.4
Network Standard Time (NST) ....................................................................................................................55
Functions Provided by NST........................................................................................................................55
Time-synchronous Sequence.....................................................................................................................56
Phase Error ................................................................................................................................................57
nNSTCOUT Pulse Generation Cycle .........................................................................................................60
2.13 CMI Modem...................................................................................................................................................62
2.14 HUB Function...............................................................................................................................................62
2.14.1 Operation Example of HUB Function .........................................................................................................64
2.14.2 Timer Expansion in Multi-stage Cascade Connection ................................................................................65
2.15 8-Bit General-purpose I/O Port (New function) .........................................................................................66
Chapter 3 Description of Registers ......................................................................................................................67
3.1 Register Map....................................................................................................................................................67
3.2 Details of Register ...........................................................................................................................................70
3.2.1 COMR0 Register: Status/interrupt Mask Register..........................................................................................70
3.2.2 COMR1 Register: Diagnostic/Command Register .........................................................................................72
3.2.3 COMR2 Register: Page Register ...................................................................................................................74
3.2.4 COMR3 Register: Page-internal Address Register ........................................................................................75
3.2.5 COMR5 Register: Sub-address Register .......................................................................................................77
3.2.6 COMR6 Register: Configuration Register ......................................................................................................78
3.2.7 COMR7 Register............................................................................................................................................80
3.2.8 NST Register: Network Standard Time..........................................................................................................84
3.2.9 INTSTA Register: EC Interrupt Status ...........................................................................................................84
3.2.10 INTMSK Register: EC Interrupt Mask.........................................................................................................87
3.2.11 ECCMD Register: EC Command Register .................................................................................................88
3.2.12 RSID Register: Receive SID ......................................................................................................................89
3.2.13 SSID Register: SID.....................................................................................................................................89
3.2.14 RXFH Register: Receive Flag (higher side)................................................................................................90
3.2.15 RXFL Register: Receive Flag (lower side)..................................................................................................91
3.2.16 CMID Register: Clock Master Node ID.......................................................................................................92
3.2.17 MODE Register: Operation Mode Setup Register ......................................................................................93
3.2.18 CARRY Register: Carry Selection for External Output ...............................................................................95
3.2.19 RXMH register: Receive mode (higher side) ..............................................................................................96
3.2.20 RXML Register: Receive Mode (lower side)...............................................................................................97
3.2.21 MAXID Register: Selection of Max. ID........................................................................................................98
3.2.22 NID Register: Selection of the Node ID ......................................................................................................98
3.2.23 PS Register: Page Size Selection ..............................................................................................................99
Revision 0.1 (03-29-06)
Page 4
DATASHEET
SMSC TMC2074
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