Download User`s Manual

MKY40 User’s Manual
4.4
Detailed Operation and Management of CUnet System .................................. 4-41
4.4.1
Monitoring before Network Start.............................................................................. 4-42
4.4.2 Resizing of Cycle Time ............................................................................................. 4-43
4.4.2.1 Resizing.............................................................................................................. 4-44
4.4.2.2 Rejection of Resizing ........................................................................................ 4-46
4.4.2.3 Resize Overlap (RO).......................................................................................... 4-46
4.4.2.4 Caution when RO Occurs ................................................................................. 4-47
4.4.3
Detection and Handling of CUnet Station in BREAK Phase.................................. 4-48
4.4.4
Detection and Handling of Jammer ......................................................................... 4-49
4.4.5 Controling and Monitoring Network Quality ........................................................... 4-50
4.4.5.1 LCARE Signal Output ....................................................................................... 4-50
4.4.5.2 MCARE Signal Output....................................................................................... 4-52
4.4.5.3 MON Signal Output ........................................................................................... 4-53
4.4.6
PING Instruction ........................................................................................................ 4-54
4.4.7
Function to Detect Mode of Each Station ............................................................... 4-55
4.4.8
Operation of General-purpose Output Ports .......................................................... 4-56
4.4.9
Global Memory Monitor (GMM) Function ................................................................ 4-57
4.4.10 Frame Option [for HUB] ............................................................................................ 4-58
4.4.10.1 Number of Insertable HUBs.............................................................................. 4-59
4.4.10.2 Setting of Frame Option ................................................................................... 4-60
4.5
Interrupt Trigger Generation Function ............................................................. 4-61
4.5.1
Operation of #INT0 Pin.............................................................................................. 4-62
4.5.2
Retrigger Function .................................................................................................... 4-64
4.5.3
Interrupt Factors........................................................................................................ 4-65
4.5.4
Operation of #INT1 Pin.............................................................................................. 4-66
4.5.5
Operation of #INT2 Pin.............................................................................................. 4-66
4.5.6
Precautions for Specifying Timing of Interrupt Trigger Generation..................... 4-66
4.5.7
Precautions for Use of Data Renewal (DR) Interrupt Trigger ................................ 4-67
4.5.8
Register Freezing in Synchronization with Interrupt Trigger Generation............ 4-67
Chapter 5
Register Reference in MEM Mode
5.1
Chip Code Register (CCR).................................................................................... 5-5
5.2
Basic Control Register (BCR) .............................................................................. 5-6
5.3
System Control Register (SCR) ........................................................................... 5-8
5.4
System Status Register (SSR) ........................................................................... 5-10
5.5
Final Station Register (FSR)............................................................................... 5-12
5.6
New Final Station Register (NFSR).................................................................... 5-12
5.7
Receive Flag Register (RFR) .............................................................................. 5-13
5.8
Link Flag Register (LFR)..................................................................................... 5-14
5.9
Link Group Register (LGR)................................................................................. 5-15
5.10 Member Flag Register (MFR).............................................................................. 5-16
5.11 Member Group Register (MGR).......................................................................... 5-17
- vii -