Achronix Speedster22i SerDes Manual do Utilizador Página 67
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Entry field
Purpose
Available Options
Choice made
Word 0
Value of Word# 0,
when enabled.
Text field to enter user-
defined value
(available when Word
0 is enabled)
283* (Refer to)
Mask 0
Value of mask for
word0
Text field to enter user-
defined value
(available when Word
0 is enabled)
000
Enable Word 0 or
Inverse of Word 0
Whether word 0 or the
inverse of it will be
used
• True
• False
False
Enable Seq 0
Whether Seq0 will be
used.
• True
•
False
False
Seq 0 Value of Seq 0
Text field to enter user-
defined value
(available when Seq 0
is enabled)
N/A since Seq0 is not
enabled
Gap Count Gap Count for Seq0
Text field to enter user-
defined value
(available when Word
0 is enabled)
N/A since Seq 0 is not
enabled
Enable Alt Seq 0
Whether Alternate of
Seq0 will be used
•
True
•
False
False
Alt Seq 0
Value of Alternate of
Seq 0
Text field to enter user-
defined value
(available when Alt
Seq 0 is enabled)
N/A since Alt Seq 0 is
not enabled
Enable Word 1
Similar to Word 0, Seq
0 etc.
• True
• False
False
Word 1
Text field to enter user-
defined value
(available when Word
0 is enabled)
N/A since Word 1
Mask 1
Text field to enter user-
defined value
(available when Word
0 is enabled)
000
Enable Word 1 or
Inverse of Word 1
• True
•
False
False
Enable Seq 1
• True
•
False
False
Seq 1
Text field to enter user-
defined value
(available when Seq 0
is enabled)
N/A since Seq0 is not
enabled
Gap Count
Text field to enter user-
defined value
(available when Word
0 is enabled)
N/A since Seq 0 is not
enabled
Enable Alt Seq 1
•
True
• False
False
UG028, July 1, 2014
67
- Speedster22i SerDes 1
- User Guide 1
- Table of Contents 2
- 4 UG028, July 1, 2014 4
- List of Figures 5
- List of Tables 6
- Overview 7
- Major standards supported 9
- 10 UG028, July 1, 2014 10
- SerDes Placement 11
- SerDes Architecture Overview 12
- 1. Common 13
- 3. Digital PMA (DPMA) 14
- PCS Self Test Logic 16
- 18 UG028, July 1, 2014 18
- Interface Encapsulation 20
- 8b/10b Encoder 20
- Running Disparity 20
- 22 UG028, July 1, 2014 22
- Polarity Bit Reversal (PBR) 23
- Symbol Alignment 23
- Modes of Operation 24
- Manual Mode: 24
- Bit Slip Mode: 24
- Automatic Mode: 24
- Deskew FIFO 25
- Functional Description 26
- Auto Mode: 26
- Symbol slip mode: 27
- 28 UG028, July 1, 2014 28
- EFIFO Operation 29
- 30 UG028, July 1, 2014 30
- 8b/10b Decoder 31
- Bit Slider 31
- PCS Self Test Checker 32
- PCS Interface 33
- PIPE Interface 34
- Clocking 36
- Debug and Test 38
- PMA loopback modes: 39
- PCS loopback modes: 39
- PMA Test Pattern Generator 40
- PMA Test Pattern Checker 40
- PCS Test Pattern Generator 40
- PRBS Generator 40
- PCS Test Pattern Checker 41
- Latency 42
- 44 UG028, July 1, 2014 44
- Configurations Supported 45
- 46 UG028, July 1, 2014 46
- 48 UG028, July 1, 2014 48
- Single-Lane Serdes Wrapper 50
- 52 UG028, July 1, 2014 52
- Overview Section: 53
- Entry field 54
- Purpose 54
- Available Options 54
- Choice made 54
- 56 UG028, July 1, 2014 56
- Section on PMA Settings: 57
- 58 UG028, July 1, 2014 58
- RX PMA Equalization 59
- RX PMA PLL 60
- TX PMA Driver 62
- TX PMA PLL 62
- Section on PCS Settings: 63
- RX PCS Settings 64
- RX PCS Symbol Alignment 66
- TX PCS Settings 68
- 70 UG028, July 1, 2014 70
- Files Generated by ACE-GUI 71
- Design and Wrapper Files 72
- Sequence 74
- 76 UG028, July 1, 2014 76
- Placement of SerDes 77
- Timing Constraints 78
- Design Guidelines 80
- Figure 37: Clock Region View 82
- 84 UG028, July 1, 2014 84
- Wide Bus 86
- Design Tips 87
- 88 UG028, July 1, 2014 88
- 90 UG028, July 1, 2014 90
- 92 UG028, July 1, 2014 92
- Design Bypassing PCS: 93
- Modification – 1 (ACE GUI): 94
- 96 UG028, July 1, 2014 96
- ACX_SERDES_SBUS_IF Module 99
- General signals: 100
- SerDes signals: 100
- Parallel Interface signals: 100
- UG028, July 1, 2014 101
- Pass-through signals: 102
- Loopback Modes 102
- SerDes signals 102
- Control signals 102
- SerDes Registers 103
- Electrical Specifications 104
- Transmitter 105
- 106 UG028, July 1, 2014 106
- Receiver 108
- Eye Diagram 110
- Reference Clock 112
- Revision History 113
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