Altera SerialLite II Protocol Instrukcja Użytkownika Strona 12
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12 Altera Corporation
SerialLite II Protocol Reference Manual
Physical Layer Description
Data Link Layer
The Data Link layer describes packet encapsulation, link initialization,
lane bonding, lane striping, flow control, and packet retransmission
request commands.
Transmit Direction
■ Packet encapsulation
■ Packet nesting
■ Idle character generation
■ Flow control (optional)
■ CRC generation (optional)
■ Lane striping for multi-lane link
■ Priority packet retry-on-error handling (optional)
Receive Direction
■ Packet encapsulation removal
■ Nested packet separation
■ Lane stripping
■ Idle character deletion
■ CRC verification (optional)
■ Flow control commands generation (optional)
■ Error handling
■ Priority packet retry-on-error commands (optional)
Physical Layer
Description
The Physical layer consists of an electrical sublayer and a logical sublayer.
The electrical sublayer converts the electrical signals from a serial bit
stream into characters and provides a synchronous clock to the logical
sublayer. The logical sublayer handles the character alignment, symbol
encoding, link initialization and training, lane alignment, and clock
compensation.
The SerialLite II protocol uses control characters to identify link
information that is embedded into the data stream. This information
allows multiple channels to be easily bonded together, matching the
application's throughput requirements to the link capacity.
- SerialLite II Protocol 1
- Reference Manual 1
- MNL-SLITE2-1.0 2
- Table of Contents 3
- About This Manual 5
- Glossary 6
- Altera Corporation vii 7
- SerialLite II 9
- Specification 9
- Architectural 10
- Overview 10
- Physical Layer 11
- Description 12
- Signal Definitions 13
- Interface Diagrams 13
- Electrical Specifications 14
- Driver Characteristics 15
- Receiver Characteristics 15
- Symbol Encoding 16
- Notation Convention 17
- Transmission Order 18
- Altera Corporation 19 19
- SerialLite II Specification 19
- Running Disparity Rules 20
- Valid and Invalid code-groups 20
- Control Symbols 21
- Comma /COM/ 21
- Align /ALN/ 21
- Idle /IDL/ 21
- Control Sequences 22
- Ordered Sequences 25
- 28 Altera Corporation 28
- Physical Layer Description 28
- Training Sequence 29
- 30 Altera Corporation 30
- Altera Corporation 31 31
- 32 Altera Corporation 32
- Altera Corporation 33 33
- 34
- Scrambling (Optional) 35
- Data Link Layer 36
- Altera Corporation 37 37
- Link Management Packets 38
- Type BIP-8 40
- BIP-8 Coverage 40
- Parameter 40
- User Data 41
- Interruption (or under-run) 42
- SLP Link Management 43
- SPP Prioirity Payload EGP 43
- SDP Data Payload EGP 43
- Multi-Lane Alignment 44
- Data Transmission Rules 45
- Lane Alignment Examples 45
- 46 Altera Corporation 46
- Data Link Layer Description 46
- Altera Corporation 47 47
- 48 Altera Corporation 48
- Altera Corporation 49 49
- 50 Altera Corporation 50
- Altera Corporation 51 51
- Transfer Size 52
- Altera Corporation 53 53
- 54 Altera Corporation 54
- Altera Corporation 55 55
- Channel Multiplexing 56
- Data Packets 57
- Priority Packets 57
- 58 Altera Corporation 58
- Altera Corporation 59 59
- 60 Altera Corporation 60
- Flow Control (Optional) 61
- Flow control time 62
- Altera Corporation 63 63
- Retry-on-Error (Optional) 64
- Segment Identification (SID) 65
- Segment Buffers 65
- Segment Acknowledgement Timer 66
- Altera Corporation 67 67
- Error Events & 69
- Handling 69
- Catastrophic Error Events 71
- Link Error Events 71
- Data Error Events 72
- Data Error Threshold 73
- Packets Marked Bad 74
- 8b/10b Code 75
- References 83
- -GX White 84
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