NEC NEASCOT-P65, User Manual

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PRELIMINARY
5
CONTENTS
CHAPTER 1 GENERAL 9
1.1 Features 9
1.2 Ordering Information 10
1.3 Application 11
1.4 Block Diagram 12
1.5 Pin Configuration 13
1.6 Reference 14
CHAPTER 2 PIN FUNCTION 15
2.1 Pin Configuration 15
2.2 Pin Function 17
2.2.1 Line Interface 17
2.2.2 ATM/POS Interface 19
2.2.3 Management Interface 26
2.2.4 Overhead Interface 27
2.2.5 Section and Line DCC Interface 29
2.2.6 Frame Pulse input pins 30
2.2.7 General-Purpose I/O Port 30
2.2.8 Alarm Signal Input / Output 31
2.2.9 JTAG Boundary Scan 32
2.2.10 Reset pin 32
2.2.11 Power and Grounding Pins 32
2.2.12 Others 32
2.2.13 Handling Unused Pins 33
2.2.14 Initial States of Each Pin 34
CHAPTER 3 FUNCTIONAL OUTLINE 37
3.1 SONET Overhead Processing 41
3.1.1 Transmission Function 41
3.1.2 Reception Function 47
3.2 ATM Function 59
3.2.1 Transmit ATM function 60
3.2.2 Receive ATM function 62
3.3 POS FUNCTIONS 66
3.3.1 Transmission POS functions 67
3.3.2 Reception POS functions 72
3.4 OAM Function 77
3.4.1 Transmitting Alarm 77
3.4.2 Detection of Alarm and Failure 81
3.4.3 Alarm management 85
3.4.4 APS (Automatic Protection Switching) 87
3.4.5 Monitoring Signal Label Byte 90
3.4.6 Monitoring Line Quality (Performance Monitoring) 92
3.5 Overhead Insert/Drop Function 99
3.5.1 Insert Register 100