Altera SerialLite II Protocol Manuel d'utilisateur Page 25
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Altera Corporation 25
SerialLite II Protocol Reference Manual
SerialLite II Specification
Continuation of Data Packet Sequence {CDP}
The continuation of data packet sequence consists of two symbols as
shown in Table 2–11. The first symbol is the /CDP/ control symbol. The
second symbol is a data code-group that can be used to convey a channel
number for channel multiplexing. The channel number represent the
packet segment to be continued.
Continuation of Priority Packet Sequence {CPP}
The continuation of priority packet sequence consists of two symbols as
shown in Table 2–12. The first symbol is the /CPP/ control symbol. The
second symbol is a data code-group that is divided into two sections. The
upper nibble contains a segment identification number and is used for
retry-on-error (see“Retry-on-Error (Optional)” on page 2–64). The lower
nibble can be used to convey a channel number for channel. The channel
number represents the packet segment to be continued.
Ordered Sequences
The SerialLite II protocol defines a number of sequences as ordered sets.
As such, each element of the sequence is a symbol that appears on all
lanes simultaneously in a column.
f See “Link Initialization and Training” on page 2–27 for more information
on link training.
Table 2–11. {CDP} Composition
Field Symbol Description
CDP1 /CDP/ Continuation of Data Packet Symbol
CDP2 /DAT/ Channel Number
Table 2–12. {CPP} Composition
Field Symbol Description
CPP1 /CPP/ Continuation of priority packet symbol
CPP2 /DAT/ Segment identification/channel number
- 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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